Thanks GP, I think this is my biggest peeve as well.
MRU CTRL-Tab is a well established Windows UI paradigm, don't ask power users to change without offering a way to disable this.
Also, while I really like searching from my location bar, I'm also not a big fan of the way the Google Omnibar Search retrieves history items using parts of the URL you visited. I much prefer the Firefox/Awesomebar method.