Go and have a look at the results this youngster got from a 6" Celestron Nexstar scope and her Dad's SXVF-H9C camera. Here's the site...
http://starizona.com/acb/hyperstar/h...hyperstar6.htm
It's using the Hyperstar lens system attached to where your secondary normally would go. Even though it's optimised for those scopes that have removable secondaries and fastar scopes, you can get conversion kits for some of the other Meade and Celestron SCT's that aren't compatible.
Makes you wonder why you spend hours trying to get great shots of objects when you could do it in a matter of minutes and achieve the same results. What's worse, they're from unguided, alt-az mounts!!!