I just ordered a Powerbook (making the switch) and was wondering, how much RAM is overkill? I'll be at college next year, so I can assume my tasks will be mainly Office, Safari, and iTunes. Being the dork that I am, I enjoy having a lot of fun with Photoshop, and I hope to be able to come out with a hip-hop CD using GarageBand (hahaha). I DID order the one 512 RAM option, and I am debating getting another 512 from crucial (roughly $125), OR going for the gold and getting a Gig stick from OWC. Is 1.5GB of RAM too much (for what I will use)? Or will 1GB handle this?