before i read the rest of your post Mushrooms came to mind right away. also DXM is pretty fun. when you get to the higher plateus (spelling). umm Oxycontin is way fun also. if you have the balls and the mind set herion (i have never done it). I have done Cocaine and i thought it was fun. and if you are able to handle that and meth then heroin should be a drug to try also. GHB is relativly small dose's can be a blast.

if you havent already take a look over at eroiwd.com to get some ideas