Hey, thanks for all the feedback. Since I posted the question, I have been experimenting with different combinations and I've found that the ATI does indeed play back 2D animation (Flash) smoother than the ProFormance. As for 3D, I haven't got that far in my testing; I'll try to post something when I find out more. For now the 21" is hooked up to the ATI, and the 17" is hooked up to the ProFormance IIII. Looks like I'll eventually need to get a Voodoo 3, 4, or 5. Any suggestions about which Voodoo to get? I don't do any gaming (or hardly any), mostly 2D (Photoshop, Illustrator, etc.) and motion graphics (After Effects, Director, Flash, etc.) Thanks again.
DavidQ