My rig is E6300 (L2: 2M, 45nm, stock @2.8G) now, and I consider to upgrade to Q9450(L2, 12M, 45nm, stock @2.66G). Is it worth for me? Most of the usage for me is gaming, I have no requirement for encoding or drawing. I think taht maybe upgrade to quad cores can last me for a while. What I really...