HTPC Remote Control Recommendations?

[4RunR]

I'm currently on the hunt for a remote control for my HTPC. Anyone here have any recommendations? I would like to keep my budget under £20.

 

[4RunR]

Thanks for the suggestion.

Last night I discovered this: Vectir HTPC Remote Control.
It's a software program that lets you use your mobile phone as an HTPC remote control. You install a server program on your PC and client program on your mobile. I'm currently running a trial and it does everything that I need so will probably buy it.