Just back from holidays...
Tried a-focal imaging with my Canon powershot, it gives good,
but limited results. A DSLR is different, because you can take
off the lens, and attach the camera body to the scope, therefore
ending up with a big 'un

Well after much deliberation, between two cameras - the Nikon D40,
and the Canon 400, I think it will be the Canon as its more suitable
for all the astro imaging programs, whereas I just found out the
Nikon has a IR filter attached to it's CCD (and I don't fancy paying
£400 just to open it and break it - I can see the missus' face....!!!!!).