Best cooling for oc'ed core i7 2600k?

Diablo3Fan

Honorable
Apr 1, 2012
2
0
10,510
Hi Folks,
I was hoping for some guidance on choosing the best type of cooler for my cpu.. I overclocked to 4.4ghz from the stock 3.4, and get idle temps in the 30s, and temps to 50s-60s under moderate workload, but when I want to do video processing or gaming, the temps can skyrocket up to 90 degrees, clearly the stock cooler can't handle it, so I've had to hold back...

Here's my rig:

Intel core i7 2600k (oc'ed to 4.4ghz on stock cooler)
ASUS P8Z68 DELUXE/GEN3 mobo
Corsair Vengeance Blue 16 GB DDR3 SDRAM
EVGA GeForce GTX 570 (Fermi) HD GPU
Corsair Force Series GT 120GB SATA III SSD
CORSAIR Enthusiast Series TX750 PSU
COOLER MASTER HAF X Full tower case

Any advice on better air cooling (ideally since my HAF X moves air really well) or else liquid cooling options would be appreciated as well.. Thanks!