I thought this may be a useful tidbit for you guys. As the rules clarification states that Schedule II is offlimits for discussion in regards to 'transaction' -- but is ok when discussing it's properties, medical benefits, addiction, and so forth.
So here is a general list of medications in Schedule II, and Schedule III. I will make note of those most commonly utilized with specific websites/sources. (IE: The popular guys).
Schedule II Medications:
Bulk dextropropoxyphene (This is Darvocet,.. and is now banned)
Dihydrocodeine (A more potent form of traditional codeine, without ceiling effect. Common in the UK.)
Fentanyl (One of the most potent opiates. Measured in Mcg (Mirco grams, 1/1000th of a mg) *Commonly utilized in patches, ie: Duragesic patches to be worn for 72 hours)
Hydromorphone (Aka: Dilaudid) -- Very potent I.V., has poor oral bioavailability. I.V. users would compare this to pharmaceutical '******'. FYI.
Methadone (I think most of you know what this is. -- most commonly used as an opiate dependent (usually I.V) maintenance therapy to allow one to stabilize their lives, and harm reduction. It is also quite a potent analgesic (painkiller).
Moramide Intermediate, 2-methyl-3-morpholino-1, 1-diphenylpropane-carboxylic acid
Morphine (What started it all. The most common I.V. pain control in hospitals)
Opium, powdered
Codeine **In the United States, codeine is regulated by the Controlled Substances Act. It is a Schedule II controlled substance for pain-relief products containing codeine alone or more than 90 mg per dosage unit. Tablets of codeine in combination with aspirin or acetaminophen (paracetamol/Tylenol) made for pain relief are listed as Schedule III; and cough syrups are Schedule III or V, depending on formula.**
Oxycodone (Most popular 'abusable' recreational opiate that is widely available. Oxycontin Formula was recently changed to disallow abuse via crushing or chewing to negate the time release mechanism (Of the Oxycontin formula, which is *time released* Oxycodone over 12 hours. The Instant Release variations of Oxycodone, ie: Roxicodone, Endocet, and so forth are still very much the same as before (ie: Crushable, chewable, etc.).
Oxymorphone (Most commonly known as 'Opana' -- also beginning to be offered from BI's, likely due to the composition change in the OC's. This was created as a less euphoric alternative to Morphine at equi-analgesic doses. Though is still widely used for the effect. Highly effect analgesic.) Has IR and Time released variations.
Pethidine (meperidine) (Also known as Demerol -- and is most commonly combined with Phenergan)
Pethidine Intermediate A, 4-cyano-1-methyl-4-phenylpiperidine
Pethidine Intermediate B, ethyl-4-phenylpiperidine-4-carboxylate
Pethidine Intermediate C, 1-methyl-4-phenylpiperidine-4-carboxylic acid
Thebaine (A natural derivative of the poppy plant, that has more stimulant properties compared to other alkaloids. IE: Hydrocodone is a combination of codeine and thebaine for example.)
Amphetamine - Most popular in this class is adderall.
Cocaine - Yes, this is a legal drug. It is also illegal, but in specific medical settings, namely hospital settings, it can be used.
Methylphenidate - AKA: Ritalin, Concerta. Widely available from BI's, and even IOPs.
Lisdexamfetamine - Vyvanse (A newer stimulant for ADD/ADHD.)
Not much to say here -- the ***Barbital derivatives are most sought after, though most will not be offered anywhere.
Schedule III medications:
Any derivative of Barbituric acid
Xyrem (sodium oxybate) oral solution 
Lysergic acid amide
Tiletamine and zolazepam
Codeine -- With Tylenol, or Aspirin (Aka: Tylenol #3, Empirin)
**In the United States, codeine is regulated by the Controlled Substances Act. It is a Schedule II controlled substance for pain-relief products containing codeine alone or more than 90 mg per dosage unit. Tablets of codeine in combination with aspirin or acetaminophen (paracetamol/Tylenol) made for pain relief are listed as Schedule III; and cough syrups are Schedule III or V, depending on formula. **
Hydrocone - With Tylenol, Ibuprofen (Aka: Vicodin, Lorcet, Norco, Lortab, Vicoprofen) (Commonly found with BI's) Most commonly prescribed pain medication/analgesic from Dentists to PCP/GP's.
Propoxyphene - With Tylenol , or Aspirin -- (Has been Banned in US) -- Still some around, but has low analgesic and recreational value.
Buprenorphine (Can be found alone, or in conjunction with naloxone (aka: Suboxone) -- Used for pain management, and addiction maintenance with the suboxone variation.)
Amobarbital & noncontrolled active ingred.
Amobarbital suppository dosage form
Anabolic steroids "Body Building" drugs
Barbituric acid derivative
Benzphetamine - Didrex, Inapetyl
Boldenone - Equipoise, Parenabol, Vebonol, dehydrotestosterone
Butabarbita - Butisol, Butibel
Butalbital - Fiorinal, Butalbital with aspirin
Chlorhexadol - Mechloral, Mecoral, Medodorm, Chloralodol
Chlorotestosterone (same as clostebol)
Chlorphentermine Pre-Sate, Lucofen, Apsedon, Desopimon
Clostebol Alfa-Trofodermin, Clostene, 4-chlorotestosterone
Fiorinal, Tylenol, ASA or APAP w/codeine
Dihydrocodeine Synalgos-DC, Compal
Dihydrotestosterone (same as stanolone)
Dronabinol in sesame oil in soft gelatin capsule Marinol, synthetic THC in sesame oil/soft gelatin
Drostanolone Drolban, Masterid, Permastril
Ethylestrenol Maxibolin, Orabolin, Durabolin-O, Duraboral
Fluoxymesterone Anadroid-F, Halotestin, Ora-Testryl
Formebolone Esiclene, Hubernol
Tussionex, Tussend, Lortab, Vicodin, Hycodan, Anexsia ++
Ketamine Ketaset, Ketalar, Special K, K
Lysergic acid LSD precursor
Lysergic acid amide LSD precursor
Methandriol Sinesex, Stenediol, Troformone
Methandrostenolone Dianabol, Metabolina, Nerobol, Perbolin
Methenolone Primobolan, Primobolan Depot, Primobolan S
Methyltestosterone Android, Oreton, Testred, Virilon
Nandrolone Deca-Durabolin, Durabolin, Durabolin-50
Norethandrolone Nilevar, Solevar
Oxandrolone Anavar, Lonavar, Provitar, Vasorome
Oxymesterone Anamidol, Balnimax, Oranabol, Oranabol 10
Oxymetholone Anadrol-50, Adroyd, Anapolon, Anasteron, Pardroyd
Pentobarbital & noncontrolled a
Phendimetrazine Plegine, Prelu-2, Bontril, Melfiat, Statobex
Stanolone Anabolex, Andractim, Pesomax, dihydrotestosterone
Stanozolol Winstrol, Winstrol-V
Testosterone Android-T, Androlan, Depotest, Delatestryl
Tiletamine & Zolazepam Telazol
Trenbolone Finaplix-S, Finajet, Parabolan
Vinbarbital Delvinal, vinbarbitone
This is not completely comprehensive,.. but should get you some general knowledge of the difference between the two classes.
Lastly -- Here is a general clarification of the scheduling process. From I-V.
n a category of drugs not considered legitimate for medical use. Included are ******, lysergic acid diethylamide (LSD), and marijuana.
n a category of drugs considered to have a strong potential for abuse or addiction but that also have legitimate medical use. Included are opium, morphine, and cocaine.
n a category of drugs that have less potential for abuse or addiction than Schedule I or II drugs and have a useful medical purpose. Included are short-acting barbiturates and amphetamines.
n a medically useful category of drugs that have less potential for abuse or addiction than those of Schedules I, II, and III. Included are diazepam and chloral hydrate.
n a medically useful catiegory of drugs that have less potential for abuse or addiction than those of Schedules I through IV. Included are antidiarrheals and antitussives with opioid derivatives.