Honestly, I would buy two 4770's and throw them in CF before I'd buy a 4870x2. The 4870x2 really does get toasty, unless you get one with some seriously effective aftermarket cooling. 260's in SLI can get extremely hot as well unless your case has very good airflow. 260's in SLI will perform better, but cost a lot more, and the 4770's so far are overclocking quite well and have much better thermals and WAAAYYYY better power consumption than the 4870x2. Not to mention you save a good chunk of money! Just my two cents. And who can't afford a decent P45 mobo that overclocks like a champ?