If your wanting a cheaper option the Philips SPC900NC with a Agena Adapter will do what you want...I have around $65 total in mine...conversion takes all of a minute and it slips in the EP holder...software I use is QCFOCUS and WcCTRL...I normally shoot 10x30 sec vids then stack them in Registax...
Here's 15600 photo's stacked and stitched of the moon...
http://i36.photobucket.com/albums/e1...stro/moon2.jpg
Jupiter...
http://i36.photobucket.com/albums/e1...piter61508.jpg
Quarter moon (1500 pics stitched)...
http://i36.photobucket.com/albums/e1.../moonbandw.jpg
These were shot through a 6" SCT with no barlow...a powermate 3x would be a welcome addition to my house...although the crummy skies around here don't offer very good viewing...the heat rising from the neighboring houses can be pretty bad also...