I've followed instructions on developer.android.com carefully:
But install still fails to match all dependences. I've tried to add additional repositories, but it didn't help. Are there some clues for installing v9.0.0 ADT plugin on Eclipse 3.6.1 Classic properly?
I've also tried this Correct install of Android SDK, ADT with Eclipse 3.6.1 - didn't help.
According to your log message you don't have GEF plugin installed that is required by the android tools. You can install it from here: http://www.eclipse.org/gef/