Here I have a couple of 5850's I have been mining with since early summer. I'm accepting reasonable offers and will ship worldwide.
1. ASUS EAH5850 DirectCU/2DIS/1GD5
Ran this clocked at 885MHz and got 360MHash/sec at 67°C with 70% fan. It could go higher with extra voltage but I didn't want to actually do any serious overvolting. This card has a nice BIOS which will go much much higher than I ever ran it.
2. XFX HD-585X-ZAFC V4.0
Also ran this clocked at 885MHz and got 360MHash/sec at 63°C with 60% fan. It could go higher with extra voltage but I didn't want to actually do any serious overvolting. The BIOS has been tweaked with RBE with the ASUS as donor BIOS, and will go much much higher than I ever ran it.
These cards ran together in the same rig with no problems and were stable for as long as the neighborhood didn't have a power failure.
I may or may not have any accessories (Molex power adapters, etc.) for these cards. If you need them let me know and I'll see what I can dig up out of my parts bin, but assume that only the card is what you will receive.
Please do not be stupid with your overclocking and blame me if you fry the card(s).
Click for full size image: