I can say if your going to go the astro photography way, a 8 Inch is ample sufficent! ive seen some lovely shots taken though a 8" dob mounted on a Eq6 pro.
I myself went the 10" just for that extra light grab. and plus it can fit into the mitsi lancer with ease (enough for my miss's, son, myself plus heaps of other gear)
Dont be affraid of the 10" its only marginally wider than the 8", they both have the same focal length, that is 1200mm, and if you go though my posts youll see that i did a semi review on the sw 10". Just depends on what you want to do, ask yourself this question as it will save you dollars at the end of the day.
Astro photography, CCD's DSLR's are sensitive to light, you don't need aperature.
very very sturdy mount capable and future proof
Visual astronomy, eyes are gay!
the biggest badest mirror you can get your hands on.
If you live in dark skies, dobs are just as good as go to's if you live in metro, goto is the only way! there are no stars to star hop!
