For those with a nikon camera and want a remote control I have found out you can use your palm device instead of buying one. If you have a palm device check out this site
http://www.natemc.com/nikontrigger.php. This is great as I have an old palm zire sitting around doing nothing and it seems to work fine.
It might work for those of you who have a canon 350d but I am not sure. I have seen on Ebay people selling remotes that work with both Nikon and Canon so I assume they use the same codes.
P.S. Loving my new camera. Very impressed with the quality of the pictures I am getting out of it. I haven't hooked it up to my scope yet, but I did a 30 second exposure of the milky way the other day using an 18mm lense and it turned out ok.