The upergrafx looks neat, but $350 is rather steep and why is it 720p? Since most HD TVs are 1080p native, won't they have to upscale it again, introducing more lag?
db_electronic's doodad paired with a decent upscaler looks to be a much better deal with rgb, s-video, and plain ol' composite. It's just too bad that it's not stuffed into a nice looking box for a finished look.
But I have little use for either, as composite is good enough for me and ain't gonna invest such monies into a huey only system.