Cheapest video card that can run tf2 on high settings?

What's the cheapest video card that can run tf2 on high settings in 1280x960



Specs:

Pentium(R) Dual-Core CPU E6700 @ 3.20GHz

Windows 7 64-bit

3.0gb ram|||You should be fine with this,

http://www.newegg.com/Product/Product.as…