A ToUcam is a web cam that you attach to your telescope in place of your eyepiece. Allows you take photos like this
http://www.iceinspace.com/forum/show...=&threadid=935
Its a bit different to taking photos as you actually take a video and then stack all the images in the vides automatically with a program called registax3 (freeware) to produce a still image.
http://registax.astronomy.net/
Check out the rest of the Solar System forum to see examples of Registax/ToUcam produced images