help

I am into alot of different bands such as led zeppelin, green day, jimi hendrix, the beatles, 311, incubus, nirvana, lynyrd skynyrd, phish, the ramones, red hot chili peppers, sex pistols, smashing pumpkins, sublime, def leppard, eagles, and cream. But i have no cd's of any of these bands. i just download a bunch of their songs off of kazaa. i would really like to buy some cd's but i don't know where to start. please tell me which cd's you think that i would appreciate the most and also which other bands i would like that are similar to some of the ones mentioned above. the only cd's that i own are led zeppelin's - how the west was won - and zoso or led zeppelin IV, whatever you want to call it. i think both of these cd's are amazing. please help. thanks