Here's a picture of the motherboard. Can you name that interface?
http://i51.photobucket.com/albums/f360/kevinthenerd/motherboard.jpg
The card on the left is a PCI video capture card. The card on the right is the Dell PERC4/SC RAID controller. The big blue thing on the far right separates the case into two different regions of airflow.
According to the sticker on the inside of the case of the computer, it says that the two green slots are "64-bit/100-MHz bus." The two white ones on the right are "64-bit/66-MHz bus," and the two on the left are, as I already know, "32-bit/33-Mhz bus."
I totally left the computer scene shortly after AGP came out. I went off to try to become a theology major, and in the mean time I tried a math major. It's only been recently that I've tried to come back into the fold because I use computers for mechanical engineering research. I feel like such an idiot because I used to have all this stuff down cold (even as far back as when ISA ruled the realm). 
Edit: Sorry about my crappy camera phone. I didn't even want a camera when I bought it, but it had other important features that I needed.