Check out Norm Stockton's DVD series Grooving to Heaven. (
www.normstockton.com) They cover a range of topics from beginner to advanced. Even the "beginner" DVD has a wealth of material that I love to go back and review periodcially. Each DVD has sections of interest to anyone, like packing for a gig, gear tips, etc. that anyone can use.
You can also take his courses through Musicdojo.com. I've done both and would recommend them to anyone regardless of ability.
Good luck!
Jeff