I have an AMD64 3400+ Clawhammer in an ASUS K8V Deluxe mobo. I used arctic silver ceramique and idle temps on the mobo is around 37C and the processor idles at around 48C, on load, bf2 running or 2 instances of WoW, the processor heats up to 52C. I'm using a thermaltake heatsink. To me this seems hot...do i need to look at a better cooling solution such as better hsf maybe zallman or spring for some water cooling?