Demo of some standard Centreline heads being changed by ATC on Bridgeport, Cincinnati, and XYZ machining centres: http://www.cnczone.com/forums/video.php?do=viewdetails&videoid=82 but it also worth checking their example of special application heads with this link: http://www.ctl-centreline.com/index.htm

Why not check out http://www.mctooling.com website as is not just another online directory, it is a B2B site run by experienced tooling engineers for engineers and designed to be a true tooling guide crammed full with blue chip companies, high technical content and useful links.