A couple of pics i took with the 350D, i love it and have seen some awsome astro pics taken with it, see Chris V's M42 in the mount for sale thread, taken with a 300D.
I don't have tracking yet, or a scope, so i can't take any of the deep stuff yet, these are all tripod mounted with cable release, click and hope for the best, apart from the moon that was taken afocally through the dob.
Gotta say the Canon is so far in front of the pentax and way more superior
