Billy, the first thing to do is check with your cable company to see if the DVI output is active. There are many Cable companies who use cable boxes with a DVI output, but they aren't activated. If it is active, unless you've got a really long run to the HDTV, I'd spend the dough to get a DVI cable and try it out. I think you'll like it.

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton