Im afraid Kevin is right jack. You need a budget of $1500 if you want some form of deep sky AP work. For that price you can get an ED 80 refractor, EQ5 mount and a DSLR (all second hand prices).
I'd suggest you get a 8" dob and familiarize yourself with the sky first. Then do some projection and afocal work. Next try webcam and stacking of planetary images (Registax is free).
In the meantime, save like mad
Bo