so heres the deal, i have to open my 12" up because i dropped it. it works fine, i just need to straighten out the case. so while im in there i want to upgrade. i email a guy at and he claims i can upgrade my hd, go to a superdrive, and take it to 1 gig of ram. i want to ask you guys if this is possible. i currently have a 867 12" g4 powerbook with 640m of ram and a combodrive. ive been told by the guys at the apple store that i couldnt take this machine any farther. can anyone please clear this up for me? thanks, Matt