What is your power supply? Are you from US? If you got a nice power supply and you're from US, I'd go with GTX 560 Ti. It's the best the money can buy for that price. It's a very fast card, with loads of overclocking potential, however, requires 500w quality power supply unit. It's $204.99/$209.99 after rebates:http://www.newegg.com/Product/Product.aspx?Item=N82E16814130604http://www.newegg.com/Product/Product.aspx?Item=N82E16814125363
Gigabyte has higher clock speed (I personally own that one) and EVGA has lifetime warranty (vs 3 years for gigabyte one)/
If you don't have a quality power supply unit, I suggest you get HD6870 and a quality power supply like Corsair CX500:http://www.newegg.com/Product/Product.aspx?Item=N82E16814150521
- $139.99 after rebateshttp://www.newegg.com/Product/Product.aspx?Item=N82E16817139027
- $49.99 after rebates
If you're not from US, please tell where you're from, so we could check your local stores for best offers.