I'd wait on the corsair H70 (I'm using a Venomous X too, but I was thinking about a little change in 'scenery'). It's quite a hefty upgrade over it's smaller brother, the H50 (which has proven its worth for quite some time now).
NO-ONE has even done a decent review on the H70 yet, wait a week and find out if it's even worth the $100+ price tag...............
^+1 I suspect it may be good as I think its the small radiator that lets the H50 down but you need to give it a week or 2 until theres some reviews out there.
I just ordered one from amazon w/ 2 day shipping. It isnt in stock though I am hoping for a big improvement over my xigmatek Dark knight