If you can hang on for a couple of weeks Dave, Tony will have a 20Da for sale cheap
I guess I'm biased and have always had canons and have never had any problems with them and they take a fine photo. 3meg to an A4 will end up grainy but if your printing them out of a bubble jet then thats not going to matter too much.
Is the camera for afocal astronomy or for just general point and shoot stuff with a bit of afocal on the side?