Here is the newest entry level Nvidia videocard, the GeForce GTX 550Ti. You get DirectX 11 and 1680 x 1050 resolution for only $149. So if you're looking for something to spruce up that aging rig of yours and you just bought Crysis 2, take a look at this new beast.
So instead of dropping over $500 (It's over 9000!) on the GTX580, you could buy two for a total of $300 and still get amazing detail and jaw dropping frame rates on the hottest DirectX 11 games.
The model I'm showing is the 1GB, EVGA version.