Hi Crusader,
to IceInSpace!
The ToUcam 900nc is the best one to start with if you don't want to spend much. You should be able to get it off ebay or other online sites if you can't pick one up locally.
Does your dob sit on an EQ platform or are you going to do the dob planetary imaging dance watching the planet whizz thru the FOV as you capture?
