Welcome to the board Moose!
A word of warning, once you start deer hunting, you will be hooked for life!
You've got the first part right, learn to shoot your weapon well! The 30-30 will be a good deer caliber, out to about 150 yards! Learn to estimate your ranges or if you have a range finder that would be great too! I've seen many inexperienced hunters under estimate ranges, especially when shooing a short-medium range gun like the 30-30.
Other than that, learn all you can about deer, learn how to control your scent and be careful of wind directions, and you'll have a good start on deer hunting! Good luck!