My new video card is overheating! It's leaving artifacts all over my screen. The fan just isn't cutting it, either. I tried shutting my computer down and restarting it, and it worked for about 10 minutes, and now the temperature is just about as high as it was last night (72 degrees Celsius). It's 67 degrees Celsius right now.

So, my question is: how do I cool this thing down, without absolutely draining my already-low bank account?

Oh, it's an ATI Radeon 9800, by the way.