Have a Radeon 64Mb. It is a great card for gaming at a reasonable price. 2D and 3D image quality is great. 3D performace is on par, plenty fast.
I have used the video input with my camcorder a couple of times using the ATI software. It works pretty good, I did experiance a lockup with it once. If you really want to do video capture and editing you will still have to buy a package of some sort. The ATI software captures but does not edit, at least with the 64Mb card it may be different with an AIW.