I have a 9000 Pro connected to my JVC-AV36P903 via DVI. I've never used a transcoder, but why do you think the overscan will be worse with DVI? 1920x1080i does have quite a bit of overscan, but I can get just the right amount of overscan with 1800x1016i for HDTV via Fusion and DVD.
Sean.
Sean.