I just purchased the 15" PB with 1.67 Ghz, 100 Gig, 1 gig Ram (can add another gig later), Superdrive, 128 V RAM. It set me back more, but worth it in the long run. Last time (5 years ago) I got base model, no upgrades but alittle RAM, 12" iBook. After about 2 years and a few software upgrades I was mostly pissed off at how slow it was. I want to be going strong in 5 years - not clicking and waiting, clicking and waiting. My iBook resale value is only $200 - not worth the effort. if you can afford it, go for the juice dude! But think about your long term usage, what's important for you? I go back and forth between screens a lot, I like to listen to iTunes while I do other things. Also, I have a 40 gig iPod and my iBook is a 20Gig! So I copy the CD on the iPod but not the iBook. So to listen to music I have to plug my iPod in - pain in the butt! If I could get 200 Gigs, I would.