I am considering going up in aperture and this fine telescope may be available.
It is F5 which is a wonderful F ratio to image at. This is the Baker Ritchey Chretien Takahashi scope. It comes with rings and dovetail plate plus an accessory bar as another location to mount another scope or camera.
It holds focus well, it does everything really well. It is quite compact so is quite wind resistant. Its basically very eay to work with.
It has a massive 90mm corrected circle so it will handle any camera chip on the market plus larger ones in years to come.
Mine is in superb conidtion, virtually no marks. I had it cleaned and collimated by Texas Nautical when I got it about a year ago.
A new one is worth about AUD$20,000. This one is $15,000.
So its not cheap but its one of the best scopes around for imaging.
Let me know if you are interested.
http://www.pbase.com/gregbradley/image/116209412/large
Greg.