You'll be fine, like i said, if you're worried about your CPU holding you back then get that bad boy up to 4.0 Ghz or above, but i honestly don't believe it will hold you back.
RAM is great, i was just asking for reference sake.
But yeah, the 560 will do you fine. What monitor resolution are you using?
I am using 2 monitors atm, neither of which is very big. One is 1440 x 900 and the other is 1280 x 1024.