I feel like my CPU is starting to lag behind and feel like I either A. Need to upgrade so key parts, or B. perform a complete rebuild.
CPU- Intel I-3 2120(sandy bridge) 3.3ghz
Motherboard- AS rock H61m-HVS(seems to be smaller than the average board)
Memory- 8gb (not sure on brand)
Graphics card- AMD Radeon HD 6670
Power supply- 400watts
Ultimately I would have $800 to spend on a new build/ new parts. I would not need a monitor, mouse, case, dvd drive, or operating system (dreamspark). I am looking for a build for World of Warcraft and want it to perform at max settings. What would be the best route to go given my situation?