For capturing video on the PC the ATI all in wonder series cards do one of the best jobs. I have an AIW x800xt AGP and it is a supper card but you must have a AMD 1800+ or better for it to capture DVD quality without dropped frames. For anologe PCI cards do a lousy job and do not give you very good captuer abilities.
Tig, I would be intrested in the Newtek software that you mention do you have any other information on it?
Thanks