To give you some ideas -
Here is a video of some of my work using a Modified Toucam:
http://www.youtube.com/watch?v=pwCMCJpW80M
and here is a link about Afocal Astrophotography using Point & Shoot Cameras:
http://www.barrie-tao.com/afocal.html
The results from a DSLR you've seen in this site.