http://hardforum.com/showthread.php?t=1867357
My fs thread with only cpu and heatsink remaining. They would be a great option. I could cut you a deal at $100 shipped for both.
Otherwise you're going to have a hard time in that price range finding something that can do much gaming.
I just sold the x58 mobo/ram but I still have an i7 920 D0 that is a great overclocker and was watercooled its whole life:
http://hardforum.com/showthread.php?t=1867357