I just bought an AMD Athlon 64 3400+ (Socket 754) retail and was wondering if my Thermaltake Silent Boost K7 will fit and be okay on it. I know that any stock HSF is crappy, so I've been looking at Thermaltake's site and noticed that the K8 version is only slightly larger (85x73x48) than the K7 (82x70x49). Also, the K7 version is approved up to the XP 3400+ (I know, no such thing). Since I don't play games, but will be leaving my computer on for extended periods, is it worth getting a new HSF? Basically, I have a new K7 and don't want to spend any more money on a K8. Thanks.