In best buy right now. Name $100 video cards, quick.

I'm in best buy right now looking to buy a video card for around $100. I don't plan on running multiple monitors, and I would like to use HDMI since I'm getting a monitor too.

As of right now the only games I have on PC are Fallout: New Vegas and GTA: IV. What do?

Edit: Left Best Buy. The monitor I got there really was the cheapest place to get it oddly enough. I didn't get a video card though. I'll be on Newegg now.