Tom. Good on you, an 8" Dob is the best start and you should be happy with it for quite a few years. I had mine for many years before upgrading and it was great.
Saturn is a bful target, and sounds like you were able to sort out a few of its moons. Do you have Stellarium to do do this?
www.stellarium.org - great free software.
Mercury is low in the west after sunset - not much to see through the scope, but good to say you have seen it.
Jupiter is rising about 2am in the east, an is a magnificent target!!
Mars rises about 4.30am - still a a small target at the moment as quite a distance from earth.
Venus is rising just before sunrise, and will be lost from our views for quite awhile.
Enjoy.
