Currently running GUIminer connected to Slush, works perfectly fine. Recently added a cmd window running namecoind to pick up the merged mining benefits on Slush's Pool. Now experiencing freezing issues, any ideas?

If that were updated it would help, but it isn't. I've done more research into J/Mhash for various cards and determined the 7850 is by far the most cost-effective. I can post excel numbers if anyone wants to see.

Hey, currently pushing 170 Mhash/s with my old 5750 and am looking to expand soon. Based on some math I've done from the massive (and wonderful) hardware capability index, 2.66 Mhash/s/W seems pretty rigid.

While I've looked to increase my hashrate I've focused on finding not necessarily the fastest card but the most efficient. Can anyone help me decide which card I should purchase next? Currently thinking of a 7850