Lenovo has just released a new multimedia remote with a built in keyboard and trackpad for only $60.
The remote itself is smaller enough so that you only have to use one hand and includes a 2.4 GHz wireless keyboard, standard media controls, and a thumb-oriented trackball.
As of right now, the remote is compatible with Windows 2000 through Windows 7 operating systems and would make an excellent companion to any HTPC.
It communicates through a USB dongle and works up to 32' away.