according to the little charts they have on there the h70 should be plenty superior to the h50...
(CPU is Core i7-920)
i think for the price you are going to have a hard time matching quality and performance. if i didn't already have a liquid kit that i liked i would probably pick one of these up.
Aaaaaarrghi7's are hot for sure. I remember hittin 95C on mine with the stock cooler.
Likewise on the GTZ -nice block. Haven't lapped the face (or CPU for that matter).I'm also using a swiftech block, gtz lapped.
my apogee drive base could use a lap treatment, but i can never find the right paper for the job. all of the hardware stores around here are worthless in that dept. regardless i'm really exited to finally have a decent i7 setup and cannot wait to overclock. i have some 1600mhz DDR3 so I'm really hoping to hit the 4ghz mark; I think my Swiftech kit can handle it. hopefully i will be ready to build it near the end of the month.