Purchacing a telescope

My search for a telescope has led me to 4 models. 2 Meades, the 10" LXD55 f/4 Schmidt- Newtonian w/ standard EMC Group, the 8" lxd55 f/4 SN w/ UHTC Group and 2 Celestrons the Nexstar 8i Schmidt-Cassegrain and the G-9.25 SC on a CG-5 mount.
I would like to do some astrophotos as I have my own darkroom. There are so many choices, I can't decide on which one. All thoughts or referrals would be helpfull.

While the C9.25 is great (I have one) I don't think the CG-5 mount will be up to astrophotography, however you could upgrade to a better mount later if you *really* want to get into astrophotography.