I can't wait till the 7990 that is going to be impressive but expensive 
I might have missed this but what is the heat like hashing overclocked ? and what fan speed
I might have missed this but what is the heat like hashing overclocked ? and what fan speedOverclocked @ 1125/975MHz with automatic fan speed I'm getting temperatures hovering 81-83C, and the fan runs at 47-49% speed. You can see some screencaps on one of the earlier pages. But since I prefer lower temperatures and am worried about VRM and memory temps not yet being reported by GPU-Z, I usually run it at 60% fan speed and get temps around 72C. The blower fan at 60% speed is quite loud (its a reference design from Sapphire).
At 100% fan speed, the overclocked card gets below 60C while mining but you can hear it from outside of the house at this point
, so as lovely as these temps are this is not an option for me as it is also my gaming and work PC.As a reminder, 100% fan speed is a good way to kill the fan, they were never meant to be ran that high.
Don't go above 85%.