I have now dusted down my winter observatory and I did a quick test mosaic using DSSR. This comprised about 100x 10sec videos which my HEQ5 zipped thru in about 15 minutes. The videos were batch processed in AviStack 2 and merged in Microsoft ICE. Click on image for full size.
This is a movie I made with my £50 Canon A810 hooked up to my Nexstar 4SE. Best viewed in full screen.