hey everyone i was wondering if it was possible to upgrade the graphics card on my imac 2011 2.7 and also my processor to a i7 right now i have a i5 im going to be doing a lot of video work on my imac so i would like it to render my video really fast and work flawless without no problems when im doing video work. i will be purchasing alot of hard drives and putting them all in a 5 bay enclosure box.