Is anyone interested in such a deal?
I've got a pair of Sapphire 5830s, low hours, sitting.  I'd like a reference design 5870 (XFX preferred).
If you're of the mining type, those 5830s are good for a combined 600 MH/s in exchange for your 400 MH/s!

I need to get my Battlefield 3 rig tuned up, so I'm looking to partner up my XFX 5870, but I'd be OK with any reference design, I suppose.
I've got a little bit of heatware and good ebay feedback.