Asus P5B Deluxe using 2 video cards?

can you run 2 cards on this board not in crossfire?

i already own a X1900XT 512mb and i wanted to watch my HD-DVD on it but Powerdvd reports that the driver isnt HDCP, so i was thinking of getting a cheap 2600XT and adding it in the 2nd PCI-E slot.

so the question is would this work n can i switch between the 2?

thanks in advance

Q1. Yes
Q2. HDCP would work if the monitor you want to watch media is plugged into the 2600XT. And most games will ask you what card you want to play on if there's two heads.