Last night I upgraded my original 100GB to a 200GB drive last night! When I bought my MBP in March the standard drive was something like a 5000RPM 160GB. I saved $100 by buying the 7200RPM 100GB drive at the time. Well, adding Boot Camp and other stuff made that 100GB drive disappear pretty quickly. So I went to dealmac.com and saw a Hitachi Travelstar 7K200 200GB drive from ZipZoomFly.com for $210... DELIVERED! I was thinking of wating for the 200GB Seagate but the seek time is slower (12ms versus 10ms) than the Hitachi. I called around for a service guy to swap it out and no one would do it for less than $90. I did it in 30 minutes. Didn't even scratch the paint (or metal or plastic)! For those of you that have a 17" MBP and want to upgrade, it is EASIER than the 15" which is used for the tutorials on iFixit.com. The top comes right off without having to wiggle the frame or pop some plastic snaps. Best thing I've done since buying a Mac in the first place.