I know for me, I will always remember what my wife said a year ago when we had a discussion about sex.
She said that I shut her down because it was "never frequent enough, never kinky enough, and so on..."
She says that she felt she could never satisfy me (that I was selfish) and gave up trying.
So, I don't know about pushing the other issues... such as more oral, etc...
I am in the same boat as you though, but not as far along. I want much more out of our sexual relationship, but we aren't even having vanilla missionary on a regular basis so I can't even think about pushing for more variety yet...
...and while I'm on it... It would be great if wife would be willing to try something NEW, but right now I would just be happy if she would do the things she did when we first met...sign...