Finally decided to purchase a USB 2.0 card today and thus I used up my last (6th) PCI slot, which made me curious as to how many PCI slots everyone else has used up, and also what cards you've got in them... Here are mine:
SoundBlaster Audigy2
NIC
Modem
SCSI card (for the scanner)
Dazzle Digital Video Creater II PCI card
USB 2.0 card
If you've got more than 1 PC in the house, just list your primary workstation.