One of the big disadvantages of using a standard PC monitor as your screen for MythTV is that when you're done watching it, you have to get up to go physically press the power button to turn it off.
Well, no more. Ian Forde has come up with a great solution to the problem. Here is a script and lirc configuration that will let you map a button on your remote to power off your monitor from using the remote control. Many people would map this to the power button on the remote.

On of the problems with Linux is lack of good support for 802.11g cards due to lack of native driver support.