I got my ancient ATI TV Wonder (PCI, original initial version, not 650, 550, Pro or USB etc...) working great under 7. So I probably correctly assume all ATI capture cards, any gen, are good.
lol here it is on Ebay for $10 (not me selling.) http://cgi.ebay.com/ATI-TV-Wonder-PC...item414999d42e
I use iuVCR and/or VirtualVCR. Both are really good and never drop any frames even stressed. If I were you, I'd look for an HD version. I think they have them now.