Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
Q6600 (with G0 stepping) is the way to go, the previous answer was dead on. For less than $300 right now you can get the best of both worlds! There are a couple of places to go to get the stepping. Here is one reseller with great information and usually a good stock of up to date stepping procs...