good deal! H60 is a bit better than the Kuhler 620 but not worth the +$15 price tag over this. one big advantage is antec has 3yr warranty and corsair has 2yr but both have great warranty service. (they'll both pay for any damages it causes in case it leaks) rubber hoses are also a plus on the kuhler.
I was about to buy this but figured I'd throw in a bid on ebay first, and won a H60 for $52.51 new in box
I intend on modding it with 1/4" tubing and a bigger radiator eventually, so that was the selling point on me for the H60 since the Kuhler uses slightly smaller non-standard tubing I believe. (Asetek says it's smaller but doesn't say the exact size)
Anyway, H50/Kuhler/H60 are all very close in performance, with the Kuhler 920 and H70 slightly ahead but not worth 2x the price tax since they certainly don't offer 2x the performance. better off modding a cheaper one with a bigger rad