However, to make any use of this setup I need a remote control of some kind. Since the PC and TV are in separate rooms, Infra-red devices are out of the question. So, why not use my Nokia N800 as the remote??

To do this I first had to install a VNC (Virtual Network Computing) server on my desktop PC. The best one out there is TightVNC, which is free and even open source. This magnificent piece of software is available on a number of different platforms. On the N800, I had to install a VNC client. The best (and only?) one out there is simply called VNC Viewer, and installs at the click of a button. When running VNC Viewer on the N800 the pointer simply acts a mouse, and the virtual keyboard pops up whenever you need it.

Finally, I got what I wanted: Total control of my PC from the couch:-)