The Audio Authorities box is probably the route I will go with my 27 inch monitor, as I need a solution for both the XBox and Gamecube.

The one disadvantage right now is the lack of a component->VGA box that has a VGA input as well to pass a signal through. I still use the monitor as a TV via a PC as well, and having to disconnect and reconnect cables all the time is not my idea of fun. A cheep VGA switchbox would work as well, but I'd prefer the simplicity of the 3rd party VGA box I found for the Dreamcast. Turn on the system, the monitor springs to life and shows the game. Turn it back off, and the PC is displayed again. Two component inputs would also always be nice, but not necessary.

A better solution for me would be a component input PC board, but the cheapest ones I found ran $800.