I think you mean HD-DVD, right? Anyways there are the following:

www.amazon.com has paramount and universal catalog titles going for $11.95 shipped. The newer paramount and universal titles run anywhere from $16-$19 shipped. They also currently have the Bourne Trilogy for $30 shipped. The Matrix Trilogy for $42 shipped.

www.deepdiscount.com has catalog paramount titles running for $9.98 shipped and catalog universal titles running for $12.20 shipped (no minimum $25 purchase for free shipping unlike amazon though.)

The Discovery Channel store has some deals going on their documentaries if you are interested in that sort of thing.

Hollywood video/Movie Gallery is clearing out their rentals in HD-DVD and they are $15 each (even for the brand spanking new releases ie American Gangster) and some of them are running the 2 for $20 and others even have the BOGO at $15 (so 2 titles for $15). It kinda depends on the individual store so YMMV (Your Mileage May Vary) both for the deals and title availability.