For a wireless HD solution, it's fairly inexpensive too, at just $199.
Wireless HD is getting closer and closer to being practical, and the WiCast from Asus is a big step along the way. It's a slick little device that sends HD signals from your computer to your television without too much hassle.
You'll need to attach the sending unit to a pair of USB ports and an HDMI output while the receiver hides behind your television. The device is capable of sending 1080p video, and while it also sends audio, there's no indicator of what kind of audio is supported.
It's not a solution with a huge range – you'll get about 33 feet out of the WiCast. It's enough for most situations, but don't think you'll be keeping the source in a separate room.
You'll be able to snag a WiCast of your own for $199 when it comes out this September.