Originally Posted by UdubBadger
The thing is they're not only $$$ but I wouldn't be able to use my shoe mounted remote shutter release. It would be good for video though.
Try Seculine remote releases. I have one for my Nikon and it works really well - the IR receiver plugs into the front multipin socket and leaves the top shoe free.
It only costs £30 in the UK, but I'm sure you'll easily get one for your Canon in the US.