Hey JE
I have the DVD\MP3 Anywhere from X10. Essentially is a video/audio sender that comes with a rf remote. You need to have a video card with tv out.
It's cheap and works quite well, at least in my house. Your mileage may vary depending on where you use it. I only have a couple of bad spot where I can't use it. The other small problem that I've experienced is interference when the microwave is on.
You get regular NTSC video signal with stereo sound, so it's obviously not very high end, but on my average tv it looks quite good.
The rf remote is easily integrable with MJ, either with the plugin, using their keyboard mapping sw, or using Girder. I originally bought it for the audio part and that also worked well.
For audio I have now switched to an FM trasmitter so I can broadcast instead of going point to point, and I've also eliminated all the interferences
Claudio