I quickly bought a GTX 660 Ti SuperClocked 3GB Gpu as it was on sale for a really good price. Now I know its a Nvidia cards so I'm not entirely sure whether this will be a good build but here we go anyway.
I was watching a build video by Logan and I have pieced these components together:
that's a 300W system max. he's already got more then enough power to SLi that 660ti... what's he going to do with more?
really... there is overkill and OVERKILL. that's serious overkill dude. No need for a 750W powersupply unless you're going to xfire an overclocked 7970...
Try this, get rid of the GTX 660 TI and get a 7870 or 7870 XT instead. With the saved money get an FX-6300 instead of the Phenom II. Drop the two hard drives and get a single 2TB and see if you have enough money left over to get an SSD.
I'm good with this change. the 7870 is about as good as the 660ti, and a bit cheaper... heck get a 7870 LE (tahiti core), take that saved cash and get a 6300, dump the 2 hd for 1 ssd and 1 hd...
you'll get a lot more performance out of that build.