M8 Why get an i7 Now , Most people using i7's Dont use them to their full potential. Best thing to get now is a QuadCore 6GB- good quality ram , a GOOD soundcard , maybe and external 1 for music. and a Mid level Graphics Card.
Best to get a m8 who knows his sh*t to do 1 for u, as a retail music machine will cost u dough wen it dosent really have 2 b dat much , i was gonna get into dis sh*t but uni is longin it out.
Coming from a Microsoft Certified Desktop Support Technician.
I would go into depth but i dno how much u know and i wud be speaking in a diff language