This seems like a work in progress, is that card in mid-air secure ?
Yes, it's secure, it won't fall down unless an earthquake occurs.
http://img696.imageshack.us/img696/2274/dsc0185sk.jpgTip: You only needed one resistance for dummy plug and btw they are not needed anymore. (with updated drivers)
Tip2: Try raising your 5830 to 960-975 mhz
Thanks for the tip about resistance, but if don't use dummy plug then I can't set frequencies with afterburner, I'm running 11.11 version driver.
5830 @950MHz reaches 300 MH/s, but GPU Temp#2 will be 73~74ºC, not 68~69ºC like now which is confortable for me.