Tried overclocking. The ROI was minimal because I couldn't go very high at all without introducting instability. Oh well, I'll be ordering a 580 in a few days, that should take care of the problem. I might add a 12gb batch of memory, but so far I haven't seen my memory utilization max out. Does wow only use up to a percentage of your max memory and that amount will increase if I get more, or will I not benefit from additional memory?