hey guys, i have the original 2.0 Ghz core duo 15" mbp. It only came in 80GB HDD, and i was thinking of upgrading to a 120+GB 7200rpm. which brand do you recommend? also, what size HDD is for laptops... 2.5"? and how hard is it to do it myself? since applecare's gone, i just might take the chance if its doable. i did assemble a desktop pc a few years ago so i think i can do it... what do you guys think? thanks!