Ive been makin house/dubstep/dnb on my pc for a while now.. think i wanna up my game and get logic running on a mac! so ive got a choice! .. i cant afford a brand new one so im goin second hand! what would you suggest is best value for money and best out of the two? Apple macbook pro 13" 2.4ghz lion os pretty much new, still boxed... 690quid ono or Apple imac 21 (2011 model) 2.5ghz quad core intel core i5 500gb hard drive 12gb ram perfect condition 6 months old 750 quid ono argh! help ?