buddy im going to have to say to NOT GO WITH A WC KIT!!!!!! get a custom one for yourself. they are fun to build and also look really cool. but if you are going to go for a prebuilt kit then i will recommend the ones below:
CoolIT Systems Freezone Elite Universal CPU Cooler
CoolIT Boreas system
if you've got the money go for a phase change cooler
i would pretty much recommend the first one. i have read alot of good reviews about it, plus its not terribly expensive. but if you want the best i would go for the Boreas. it fits all cpus and PC Gamer says that it is the best one that they have looked at so far. its idle temp is 20C and 32C during their burnout test. that is chill for as far as im concerned. go ahead and look around man. I would check reviews from PC sites that review these types of things.
on the other hand if you are rich and can afford it. get a Phase change cooler. they read out at the negatives. they are for the xtreme OCers. try checking out the phase change forums here.