I just got my mid-2009 13" MBP back from the Apple Store with a new 500 gb HDD. Other specs are a 2.26 ghz core 2 duo and 2 gb RAM and running OS X 10.6.8. Sometime soon I plan to upgrade the RAM to 8 gb and download Mountain Lion. Anyway, my original HDD was 160 gb, and I was using about 140 gb. With this new, bigger drive I've been thinking about adding a Linux partition. Unfortunately I know very little about Linux or dual booting. I do have several computer science friends who could probably help me out, but they don't know macs or OS X. So I thought I'd ask you guys here. Any suggestions on a Linux system for a beginner? Also, how should I go about dual booting as I understand there are several methods. Finally, is this even a good idea? This is my sole computer for college, and i'd hate for something to go wrong since this is my third hard drive. I definitely won't load windows. Haven't used it since XP anyway. Thanks!