If you're looking for a great card for the money, consider the 4850.

http://www.newegg.com/Product/Produc...82E16814121253

If money isn't an issue, definately go for the GTX 280.

If you want something in between, the 4870 is an excellent choice as is the GTX 260.

You really can't go wrong here. It's a great time for graphics cards. Wouldn't have said the same before the summer.