Hi MO76.. this subject has been talked about alot on this forum. Most people will advise that the best option is a Web cam to take video. Then use Registax (free version) to process the video for you into a single image.,. It's very easy to do and will give you far far better results than even with an exspensive DSLR.. Having you own a DOB the Webcam option is even better for planatary photo,s.. The Philips Toucam or the Philips SC900.. series is the best if you can find one on E-Bay..
Cheers
Mardy