@Arcman I dont think the MOBO can physically fit 2 new gpus.
http://www.amazon.com/Creative-Soundblaster-Surround-System-SB1095/dp/B0044DEDCA/ref=sr_1_2?ie=UTF8&qid=1377713184&sr=8-2&keywords=creative+usb+sound+cardplay your Dota.. in THX !
Vengeance, when I put the 580, it barely had space for anything. Plus I would quicker put another 580, than buy two NEW GPU'sI basically only play DOTA on the damn thing, no need for that.
Only issue i'm having is that I just shelled out about 80 US for a logitech pair that works well. But does this buzzing thing then completely shuts down. and no fix for it yet