I'm looking to upgrade from a Radeon HD 7770ghz, I hope too keep the price under $350, and I'm a fan of Asus' DC2. Are there any other cards under $300 that have better performance than these? I plan on overclocking, the lower the power usage/heat the better. What card would be the best performance for the price/power consumption? I hope to play at max settings (I'll lower shadows if I can't) at 1080p.