hello friends , i want to buy a new iMac 27 late 2012 . i dont sure which CPU take . i use that computer just for 1 thing . just for this . Music Production On Logic . I Even dont connect him for the internet. I buy the computer with 1TB Fusion Drive + 32GB RAM ( install by myself ) i dont sure which CPU take . I5 2.9 OR I7 3.4 . now i have money for the I5 2.9 , if i want money for the I7 i need work more 2 weeks , its ok . but i need take I7 or i can work with I5 ? thanks !!