Thank you very much, How about for gaming? has there been a "best CPU ever" kind of thing?
This one right now is easy - it's the i5-3570k. You'll find that all around the forums.
It's cheaper than the i7, but the only difference is that the i7 has hyperthreading that games don't use.
Yes, there are Xeon processors that have more raw power, but due to the restrictions on the rest of the build, their heat and power draw, and the fact that basically no game uses more than the i5's 4 cores...