Hi Mike,

"CCD Astronomy" by Ron Wodaski is a good starting place to get a basic understanding of the ins and outs of astrophotography. (You should be able to google the title and order from his site) There are other good books as well, but I have found this one very thorough. There is a steep learning curve, but if you are persistant, it can be a very satisfying pastime.

Good luck!

Kent