I Have a Solution that I use Its for under $120.00 I have a USB-UIRT (UIRT stands for Universal Infrared Receiver Transmitter) Its from
http://www.usbuirt.com/ It Costs $55.00 + $8.00 s&h And The Software I use is called IRCommand2 its Universal Remote Control Software for the PC its from
http://www.wdpsoftware.com/ It Costs $34.95 I control the computer with a handheld trackball mouse from
http://store.ergoguys.com/1330125.html It Costs $16.95 I use this hardware and software setup on a dedicated computer on a shelf above my television.
Any questions? feel free to ask them.