Check out the CAT5 DVI and Component video stuff from Extron, Pvid stuff from Crestron, and other Baluns. I have had way too many long (Over 25 feet) HDMI cables bad out of the box. I have tried Monster, IXOS, NGX, Phoenix Gold, etc. I have not found one that is reliable over that distance. Now I always test before we pre-wire using an HDMI.

1080i Baluns:

[Link: svideo.com]
[Link: unicomlink.com]
[Link: extron.com]

Mike