Smoking Ban in Germany

I keep getting excited about this and then confused on how it applies. As far as I understand it has been left to individual states in Germany to enact their smoking bans. And on August 1st the first 3 kicked in. I think either then or on Sept. 1st federal buildings and trains/stations have banned smoking completely. And I've been hearing that some sort of ban has gone into effect Sept 1st for Saxony. But I can't find anything to back this up on the internet, in English or German. Does anybody REALLY know what's going on with the smoking ban in Saxony?
I heard that as of now restaurants that want to maintain a smoking portion will have to have is physically separated (i.e. by doors) from a non-smoking portion. And what about bars? And other buildings? People were lighting up yesterday inside the new Dresden conference center for the European Life Sciences Meeting. Boy, that was a "yes, we are still in Germany" moment.
Can anybody fill me in? And are the bars/restaurants in Neustadt gonna actually pay attention to this?


update: Okay, I found a few articles, it looks like Sept. 1st smoking is banned in trains, stations, etc. and federal buildings. And then for Saxony a ban kicks in in 2008 that will apply to more places i.e. restaurants, but will still include some exceptions.