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.
At this point there are no cost effective upgrades to any of the current CPUs or platforms from your overclocked i7-920/X58 combo. The i7-3770K and Z77 combo will cost you much more money than what you'd gain in performance even after accounting for what you'd get back by selling your i7-920 and X58 combo. (And please, do not ask for a price check anywhere in these forums outside of the paid subscription access General May[H]em forum.) And since you already have a perfectly adequate CPU and a fast (but not the fastest) GPU, the only worthwhile upgrade that you can make at this point would be an add-in PCI-e USB 3.0 card (if your motherboard has only USB 2.0 capability).