First thing you need to do is grab a CPU. If your board supports it, grab an fx 8320 or 8350. Myself I have the 8120 I upgraded to that from an Athlon quad core and honestly that was even a good jump. But previously I'd had an Athlon dual core and my old Athlon dual core bottlenecked a gts 450. So you've really probably been soldiering along. Grab an fx 8 core and be happy. I mean you can go intel but you've got pretty much the rest of the system. Get an 8320 and an aftermarket cooler like a hyper 212. My 8120 idles at near 30 degrees celcius, but I'm using a v6 gt cooler with a push pull config.