Probing videocard, or whatever ;)

I'm using Slackware 10.0 and fluxbox; so no cute menus to the rescue. I need a command to "probe" my videocard. Excuse my poor wording... but I use "alsaconf" for my sound, and I need one for video.
I have an onboard 4mb card, and a PCI Geforce card with 64mb... obvious choice. Problem is, I don't know which one it's using. Even so, I'd like to make sure. Anything? :)

try /sbin/lspci

edit: whoa, i didn't realize how old this thread was.... hope you figured it out by now.