I think someone bought an ex display C8000 not that long ago from Comet - do a search for their thread and the owners thread
Also, see the review in the review section.
http://www.avforums.com/review/Samsung-C8000-UE46C8000-46C8000-8000-3DTV-HDTV-Review.html
'Good' overall, sounds like backlight bleed a big issue.
Remember it's now 18 months old, 2010 generation so won't have all the features of the 2011 line up most likely
Never heard of the retailer myself, so buyer beware
I'd be buying a 46" Panasonic plasma myself for that money (46GT30 is around a grand now I believe)