if you were going to buy the classic, then that's an indication that you have plenty of music. so, maybe the classic is good for you since you seem to want a lot of music. but the touch is rather nice...instead of pulling your laptop to check something out, you can just whip the little sucker (iPod Touch) out and use it 😀.
I would choose the iPod Touch since I have one already; and if I could go back in time, I would've gotten the 64. :]