I am almost finished with my new system build. I have a MSI P67 80 motherboard, I7 2600K, Crucial m4 256gb, Corsair H80, RipjawX 16gb ram but haven't gotten my GPU yet. I was looking at the MSI GTX570 forz III but I am also interested in the GTX560 TI Hawk and maybe put that in SLI. I am getting one of those two cards. Should I get the 560tiand sli it soon or just go with the 570?