Outer planets amateur viewing

Doing some research on viewing Uranus and I came across this interesting web page: http://www.ipoc.net/ (click on Uranus, than go to Uranus drawings). Posted by some folks in Germany who apparently have done some observations of Uranus
with modest telescopes 10 to 16 inch over several nights. They then drew what they saw. What is interesting is they compare the drawings to what the Hubble scope shows on the web site. The drawings aren't that far off. Amazing. Just goes to show what an amatuer can still accomplish with patient. Has any one else had this type of success at Uranus or Neptune?
Happy holidays.
Jay

Thanks Steve,
Nice link to weather conditions. Have you had much luck in seeing detail on Uranus/Neptune? Can't seem to find a whole lot out there pertaining to amateur viewing of these-other than the link of Uranus drawings I placed.
Jay