CPU: the performance choice these days
Mobo: also consider Asrock Z68 Extreme 4 Gen 3
Ram: get either 2x4GB 1.5V CAS9 1600Mhz or two of the sets.
Case: Good solid case with great airflow, will fit the components listed
PSU: 750W PSU will be sufficient. Corsair/XFX/Seasonic/Antec
GPU: Whichever seems better for you. Performance is roughly the same when you OC the GTX560ti's.