Powerpage has a review and selected Griffin AirClick USB as Powerpick. I’ve been meaning to write about this- if you present on a Mac or PC the AirClick is the best remote I’ve ever used. As as added bonus it works as an iPod remote from 60 feet away (it’s RF not IR). So for presenting, remote control kiosks/projects and music it’s permanently in my gadget bag. Link.
Griffin AirClick USB