Im considering upgrading my macbook pros 120gb 5400rpm harddrive. Has any one done this? I know there are some tutorials online and what not. What hard drives are compatible, and give the best/optimal performance? I would like to get something about 200GB 7200RPM if possible. I have my hard drive partitioned right now for my windows xp, and mac osx, and only have 50gb on my os x and 24 on my xp left. Discuss, tips, etc pease!