AvoK95 Get a 500-550 or 600~ ish Watt PSU, and a GTX 660Ti or 7870. Everything else seems fine. You can upgrade the motherboard as well to a B75 chipset. Don't get cheap Chinese power supplies from shops!! Choose from here: http://pcandparts.com/must.htm
AvoK95 Non Ti has is much much slower than 660Ti. I would wait for a reastock. For PSU, get the Gigabyte one. Your motherboard will do for now. You only need to upgrade it so that the card doesn't block your SATA ports. I'll try to find you a 660Ti (I'll PM you)
