Best solution, in my view, would be to use an external video scaler...that said, these are in state of evolotion as new a generation of products based on the Silicon Optics HQV as well as the Gennum XVP will be released within the next 6 to 9 months -- some are already out there..

If possible I would hold out for one of these, otherwise I would look at the Lumagen HDPro which can do motion adaptive 1080i deinterlacing..

Sorry Faroudja/M...will I am a string supporter of your audio side -- see below sig -- I believe others do a better and more cost effective video processing...

Audio: Triad Monitor Golds, Surround Golds, Silver Subwoofers; Procella P-18 Subwoofer; QSC DCA 16622s, 1644, 3422, BASIS 922uz; ADA MACH IV B
Other: APC S-15s; Crestron
Sources and Video: Ran out of characters .....................