So, I'm gonna build a computer based around the AMD 64 FX-53/4000+, and I was wondering: I'm gonna buy the Thermaltake Venus 12 heatsink/fan to use instead of the stock fan/heatsink. Does the retail version of the processor come with anything else besides a heatsink/fan that I would need? Or can I save some money and buy the OEM instead? Also, any suggestions for a better heatsink/fan for the 64? General reccomendations? Thanks a lot.