5700 Ultra cooling upgrade

Currently I have a BFG 5700 Ultra, with stock cooling. It clocks to 550/960 stably for gaming, and 560/980 for benching. I know the ram is heat limited, and I have a good sink solution for that upcoming, but the core goes upwards of 60C on load in a hurry and stays there.

I was looking at the Vantec Iceberq4 Pro to put on it ($15, copper), a 1U Directron sink (70mm, copper, here ), taking an old 60mm aluminum hunk o' junk (epoxy it on and put a 60mm fan on it), or finding a cheap GPU block to put on it. I don't particularly like the design of the Jetart cooler, so rule that one out.

I do plan to volt mod, and low profile is desired, but so is low cost, $20 or less preferably. Noise is an issue. I'm leaning towards modding a 70mm 1U sink, since I don't mind modding/drilling to get it to fit, and a 70mm fan would be quieter than other aftermarket GPU coolers.

Any opinions or ideas?

I might have something for you YGPM

Id get a nv silencer for it :S

I'm not a terribly big fan of the Silencers, especially since the 5700 version has a copper plate that tries to transfer heat to the main fins. That, and the fan is not as quiet as I would like from what I've read on SPCR and here.