What is a good ati video card right now for casual gaming?

I have a amd rig so i will stick with ati..

I don't play games that are hardcore and stuff. Usually download able games like combat arms and such|||The 4670 will work very well for your apps. http://www.newegg.com/Product/Product.as…|||probably 4850, cheap around 110 usd maybe less depending where you buy