In the weeks following his introduction of an Assembly bill that would legalize -- and tax -- marijuana, the always quotable Tom Ammiano became one of the nation's most sought-after sources of quotes. His bill was discussed in every major paper in the state, and many nationally (including Zig-Zag, yes) and he even sat for interviews with French and Danish TV crews. An interview with CBS' national evening news was scheduled for last night.The fizz is finally going down a little bit -- Ammiano's p