For a ~$200 range:
1950XT (not XTX)
"The X1950 XT is a powerful video card. Its core runs a mere 25 MHz slower than that of the X1950 XTX, and its memory runs a full 250 MHz (effective) faster than the X1900 XTX. In English, it is on par with the previous X1900 XTX champ, and fast enough to run at high resolutions with nice eye candy. It will handily beat a 7950 GT, and even best a 7900 GTO or 7900 GTX at most things.
The X1950 XT is an incredible deal at the $200 price point and I've seen it go for as low as $180 on Newegg. Many are $250 or higher though, and at that price it begins to tread too closely to the 8800 GTS, which is more powerful."