4870 X2 after market cooling

I recently ordered a sapphire 4870 x2 from newegg, and I searched around quite a bit to find an after-market aircooler for my new card. I haven't seen even a rumor of one. Does anyone know if there are decent aircoolers available for 3870 x2/4870 x2 ?

(I think they have the same heatsink layout, although I could be wrong on that)

If not I may go with the danger den waterblock and set up a loop just for cooling the card, but that is an expensive solution. ($138 just for the block, not counting pump, rad etc.)

Yeah I cranked it up enough to keep the temps down, but now it is loud! The PC is in my living room, so that's kind of a problem. My thermalright cooler on my 8800GTX was silent as death, but there is nothing out for the 4870x2 yet.

Thanks for the reply,
Pete