i can't comment on the SCT; here is my flickr page
http://www.flickr.com/photos/80336656@N07 i have the SW goto 12". it might give you some idea. its a nice scope, however i'm looking at getting an astro-photograhy dedicated scope at the moment. I'll probable keep the SW12" for visual and/or planetary photography.
if i were to do it all again, i'd probably get a NEQ6 with 8" reflector (or ED 80) and then 12" dob or 16" dob with no goto tracking for purely visual use. then you've got the best of both worlds.