Someone has contacted me about replacing an old system (4 cams, 5fps each, horrible quality) and I'm clueless about this stuff...really.

I'm looking for small profile types of cameras (6-8 cams @ 10-15fps) that will produce good quality color image, preferably 640x480 or so resolution, good enough to identify faces or products of shoplifters and/or dishonest employees.

I'm looking for the cameras, hardware, and software. I plan to use a different PC.

Anyone have any experience in this department, perhaps either links to quality software or camera packages?

Thanks!