Yeah could do, but the problems with the hackintosh are a pain. I honestly can't wait to upgrade. My current CPU is the intel 3770k and the 4.0ghz iMac processor is around 30% faster at max usage.
I've moved most gaming to consoles, just not super interested in PC gaming and the iMac can still do most of it.
If Apple bring out a Mac Pro though with a gaming performance GPU I might consider that too, but thats never going to happen any time soon, lol.
Also finally I love the glassy reflective screens. Just so used to them these days and using anything but is just odd to me.