If you have a digital "point and shoot" like any of the cameras you see advertised, you can get away with taking happy snaps of the moon, planets and brighter DSO's (deep sky objects) by just having a medium sized reflector (6-8") on a dobsonian (alt-az) mount and using a
digiscope adapter to attach your camera to the scope. Brand new scope will set you back between $350 to $600 for a 6"-8" scope, second hand quite a bit cheaper. New scopes...try
Andrews or
Bintel or
My Astroshop.
Good second hand stuff, try the IIS Classifieds.