the best is certainly is certainly to create your owns.
I'm evaluating some auto. functional/regression products too. And it appears (to me) that for webapps, everything is fine with editors' samples, everything is hardening in real environment....
which products are you evaluating ?
These types of apps are readily and freely available all over the web. If you are looking for something specific, please elaborate and maybee I can direct you appropriately. I think that com components are specifically dealt with in TestPartner, as are ActiveX controls.