Many people say to stick with BUILT BY ATI but I couldn't and went for POWERED BY ATI. Couldn't find a built one for a reasonable price in Oz. I did read somewhere that the Sapphire and Hercules still use the ATI s-video chips and connectors. You could also get the Sapphire Radeon 7000 with 64MB DDR if you were worried about having lower memory. Model number 1024-1141-01-SA for NTSC, 64MB, 183/183, TVO.
Cheers
-cdbrown