AFAIK, AIW 9800s are still very expensive and I'm not sure whether you can get them in 210 range. At least where I'm now.
Buying a graphic card is a mind boggling process, but as I suggested before, decide on a brand first (ATI / Nvidia), then do a price / performance comparison, then try to select a card matching your requirements. Otherwise you might find it difficult to make a choice and will end up running back and forth the forums. Personally, I believe that ATI picture quality (at least Radeon Series) is much better than Nvidia's (not performance, plainly how the screen looks). (Nvidia fans, no flaming please).
Once again, reading reviews is a very important part of the process.
Stone walls do not a prison make,
Nor iron bars a cage;
Minds innocent and quiet take
That for an hermitage;
If I have freedom in my love,
And in my soul am free,
Angels alone that soar above
Enjoy such liberty. - Richard Lovelace