hello guys i got myself a mac mini and im really excited about the lil machine. it fits damn perfect on my desk and, jeez, thanks for the low noise apple! i am new to macosx and i am lost. actually i only had an ipod so far. but my question concerns hardware i have the 799 bucks macmini. id never pay top cash for a SSD technology as im not much of a tech-maniac, i think im ok with HDDs. i heard that the lil thing comes with a 5400 rpm one. is it possible to remove the 5200 and put a 7200 hd? would i have to buy LION again? also, do you guys know if i get significant speed improvement with 7200 rpm?