Those are great coolers and pretty much standard for a overclocker. I've actually been looking at other coolers since i'll be upgrading shortly. I'm looking at the following closely otherwise i'm picking up the Thermalright Ultra 120 Extreme.
Thats the first i've ever heard of the Enzotech myself so I can't say much about the cooling but every review i've seen are saying this cooler is freaking sweet. Problem is every online store i've looked at there out of stock. Heres a nice resource on alot of the big name coolers. All tests were on a Q6600.