If you have a Digital Rebel (300D or 350D, this might even work on the 20D) you can use your PDA to control your camera. I had previously spent hours searching everywhere trying to find out how to do this, and I finally found the file I needed. If you have a Pocket PC you need to get software that allows you to use it as a remote control, and it has to accept CCF files (here's one that I use http://www.pdawin.com/tvremote.html. Once you have that installed on your PDA you need to download this file: http://www.handy.ru/board/download.php?id=1759
If you're using the remote control software I linked to, you need to copy the CCF file to 'My Documents' and open up the program and go to Options > CCF Mode > Then select 'Load CCF' and locate the necessary file. Once you've done that you will be able to either take an instant picture, or take a picture with a 2 second delay. This might save you $20 since you no longer need an RC-5 remote for your camera. Anyways I just figured this out and I thought I'd share and maybe help some of you out
If you're using the remote control software I linked to, you need to copy the CCF file to 'My Documents' and open up the program and go to Options > CCF Mode > Then select 'Load CCF' and locate the necessary file. Once you've done that you will be able to either take an instant picture, or take a picture with a 2 second delay. This might save you $20 since you no longer need an RC-5 remote for your camera. Anyways I just figured this out and I thought I'd share and maybe help some of you out