If you're a serious AutoCAD user (ie large business, etc.) then go with the Quadro II. It's around $550 - $700 but it's the best for AutoCAD and that type of stuff.
all depends on what kind of job you do with autocad.
2d operation play the role, matrox always come first.
3d? hm... Diamond FireGL series is a good choice, but diamond had been...... 🙁
check <A HREF="http://www.3dlabs.com" target="_new">3Dlabs.</A>
<font color=orange>What do you think? </font color=orange>