There is a 7950 (850/925 MHz boost version) on NewEgg at the moment for $279 (plan on upgrading my old 6850). The price point is honestly making it rather tempting. However, it would be a large purchase for me, which warrants some community feedback, and the PowerColor brand is a big unknown for me.
If you want, here are some of my current system specs:
GPU: Sapphire 6850
CPU: i5-3570K OC'd at 4.4 GHz
PSU: OCZ Mod X-Stream Pro - 600W - Bronze Certified
MoBo: AsRock Z77 Extreme4
Case: CM Storm Enforcer
Some additional notes: I do not plan on overclocking my GPU.
Edit: Doh, forgot to mention: video card memory is important; plan on running an eyefinity (5760x1080) setup in a month or two when I have the cash for the third monitor.