two qcam's


I need to run two quickcams (b+w) and am contemplating using a 
parallel port card so that one camera is on the existing printer
port and the other is on the new card.

I currently can read a frame about <50 cycles (on the printer
port) , which is going to be fast enough I think. Does any one on
the list have experience of this sort of thing. Or any comments,
warnings etc

Thanks, Jack