I use this maching for Planetside 2 and Battlefield 3 mostly. PS 2 runs great on all high settings (without GPU physics turned on), and Battlefield 3 runs smoothly with all settings on Ultra, Lighting on SSAO, Anistrophic Filtering on 16x, Post AA off, and Motion Blur Off. Due to the slightly outdated cards, I can't quite crank all the settings up yet. Soon though!
Also, compatibility on PCpartpicker says that MSI Z77A-G45 is not SLI capable. This is not true.