Hi I am in 2 minds whether to buy an Nvidia 8800GTS 512Mb or an ATI HD3870x2 card.

I will not be running SLI or Crossfire.

The core specs for my new PC are:
Motherboard: Gigabyte CA-X38T-DQ6.
Memory: G.Skill (1Gbx2) PC#-12800, DDR3-1600
CPU: E8400
Power supply: Gigabyte Odin GT 800W for the Nvidia Card or Antec 850W TruePower Quattro (has 8 pin PCIe plug) if I go for the ATI HD3870x2 card.
CPU Cooler: Xigmatek HDT-S1283 with a Sunon KD1212PMB1-6A (108CFM)

I want to moderately (safely) overclock both the CPU and graphics card. As this machine will be running 24/7, I want have some safety margin.

I have costed a full (good quality, recommended by this forum) H2O system (CPU, GPU, NB) and it comes out approximately AU$500 more expensive. It would be nice, but like many of you here, I am on a budget and would rather spend my hard earned money on a more powerful graphics card or CPU, etc, than having H2O and nothing to use it on.

My question is: What air coolers are available to suit the ATI HD3870x2 card?

Are there also reviews that have been written to compare these coolers to the stock cooler?

Thank you,

David