Looking for a liquid cooler

Hello! My current fan (Intel stock fan, bleh!) is not holding up too well anymore. I'm getting 37c idle and up to 75c under load.. I'm looking to buy a liquid cooling solution to keep it cool. I play tons of video games and I'm want to overclock. (i7-2700k)

I've been looking around but there are quite a few but I'm not sure which one to choose. My budget is $120 or less. Thought I'd come here for some insight because I've never dealt with anything other than the stock fan. *

*Also space isn't much of an issue, I've got a HAF X.