Ok i expect this will get asked so here it is;
If you get an 9800SE AIW and it mods ok, the current Catalyst drivers bomb out in OpenGL games- Il2:FB QuakeIII, Rtcw..... Read about it here http://www.ati.com/support/infobase/4295.html
When you install that driver OpenGL games should now work BUT you'll go back to lower performance. So what you need to do is get file ATI2MTAG.SYS from http://www.ocfaq.com/softmod/ati2mtag.11774.zip Restart in safe mode and overwrite the one in C:/window/system32/drivers/ with the one you just downloaded. You MUST do it in safe mode else the file just gets replaced with the old one when you restart.
Run 3D Mark2003 multi texturing test and you should be getting 2000-2600. If it hasn't worked you'll get between 1000-1400.
Hope this helps.