Jupiter is a terrific subject for amateur imaging.  The four satellites are always in motion, and often put on quite a show.  You can see the moons cast a shadow on the face of Jupiter, disappear and reappear as they move in front of and behind the planet or in and out of Jupiter's shadow.  Occasionally, two or more of the moons will cast a shadow at the same time.  I've included a page that lists when these "dual" shadow events occur. Click here to see it.

Jupiter itself also put on a show.  The cloud bands are constantly changing.  You can see these changes with a scope as small as an 8" if you have good seeing.  The Great Red Spot (GRS) will move completely across the face of the planet in about 2 hours.  You can easily see the GRS in an 8" scope and can often see it in a 6" scope.   I've not seen it in a scope smaller that 6", but it may be possible to if seeing is excellent, and the GRS is nice and dark.