for all you body builder types: i'm 5'8" and i weigh about 120 pounds. i would like to gain muscle mass (but i dont wana look like the schwarz). soo.. -what should i be eating more of? what should i not be eating? -since the gym is expensive and i have no room for one of those compact home gyms, can i get good results from using just dumbells to workout? are there good routines someone can fill me in on since i know nothing about this stuff? anymore tips or dos/donts would be greatly appreciated. i looked all over the internet for stuff like this but nothing was helpful.