My dog had some pretty bad dominance behavior when we first got her. In addition to what you mentioned our dog...
#1 Gets no human food whatsoever
#2 Is not allowed on any furniture
#3. Is not allowed on our bed (or in our bedroom for that matter, but that was a personal preference)
#4 Is never allowed to lay at a higher elevation (she used to run up the stairs, lay down and watch us. Apparently this is the doggie-equivalent of "lording over you."
#5 Commands are given once, and one time only, before she is expected to comply

We also got the book Leader of the Pack . I can't remember the authors but you can do a title search on Amazon.com and find it. It is basically a short, easy-read book on becoming the alpha. We found it helpful.