Not meaning to hijack your thread, but shooting the moon without a tripod is definitely possible. Below is a link to a hand-held shot done with a K10D, Sigma 600mm mirror lens and a Pentax 1.7x TC (equivalent to 1500mm all combined!!). You'll notice it's fairly clear and sharp - shot at 1/500th of a second.
I usually start with f11 or f16 and use shutter speed equal to my ISO for a full moon. This shot is ~f13 with the TC, ISO 560 and 1/500th shutter. For a half moon, you'll need to expose one stop faster that this, two faster for a quarter moon.
YAM (yet another moon) on Flickr - Photo Sharing!