I would suggest learning all you can about your quarry. How they move through the world, how to fool them, patterns, and habitats, etc. Read some hunting magazines just to get a feel for it. Since you are experienced with firearms, it should be easier for you. Know where the vitals are on all your game for a quick and humane kill.

Most of all, be safe. Take the course whether you legally need it or not. It will probably be common sense stuff(I know the one I took was) but you will still proably learn something. Second most of all, have fun. Enjoy the woods and the animals. The thrill of being afield. MAke sure the deer you take is the one you want. If you just want meat, take a nice tender doe, but if you want horns(as well as mildly less tender meat) be patient. Hunting is 99.5% preperation. pulling the trigger is easy(well, throw out the rubber barrel shakes that come with a bigun) The kill is the culmination of hard work and waiting for the proper moment. Every other moment leading up to that is just as sweet(even freezeing your ass off and watching a pencil horn midget all morning) I'm babbling. . . . I need the season to get here already!