I just bought a radeon 5770 and it's time to upgrade my CPU to make sure I get everything out of it. I can't decide whether I should get an i3-540 or a Phenom II 955. I currently have an e6600, so I figured since I need a new mobo either way, I should make sure I'm getting the best CPU for me. I will primarily be using it for gaming with the general office documenting, web browsing, photo shopping, and video streaming sprinkled in. The CPU article prices them at the best for 140 and 160, respectively. Which one should I get?