I'm building a gaming computer for my Co-Worker. He has a budget of $1,000 to build. I'm trying to save him money without sacrificing too much performance. My main concern right now is the heatsink and fan. We were looking at using the Q8400 processor, but I'm wondering if I should stick with the stock heatsink and fan? He will not be overclocking. If not stock what would be a better CPU cooler that is cost effective?