Even though my i7 is from 2009 and on the very low weak end of all i7's? i7 860 2.8Ghz?

It's still good to play with the big-boy Nvidia cards?

I have an aftermarket case so I'm pretty sure i'm good for space. Was the 3.0 pci slot or w/e I wondered about for my mobo.

Not seriously shopping or anything, just wondering for future reference.