Not brilliant, but not too shabby either.
This Jupiter shot was taken through my 6" Dobsonian telescope, with a barlowed Televue Radian 10mm and hand-held digital point-and-shoot (Fuji Finepix A800 8.3 Megapixel).
Conditions were pretty ordinary, lots of air movement. I took about a dozen shots just for fun and this one came out the best. I slightly modified the image in Photoshop through image sharpening and curve adjustment. It's decent, you can see a few cloud bands anyway! There's a fair bit of noise in the image and I tried to remove it using Noiseware but the difference wasn't that noticeable.