[The G Man]

Same here. Absolutely loved it. As for how "quick" Annakin converted to the dark side, I think in that split second where he impulsively attacked Mace Windu (for fear of Sidious' knowlege of how to save Padme being forever lost), that the floodgates just swung open and he was consumed. Had Windu been willing to take Sidious prisoner (not sure how THAT would happen!), then in my opinion he doesn't turn.

[PzLdr]

Considering George's penchant for repeating themes, motifs and lines, I'd say he was gone when he murdered Dooku on command - which his son refused to do to him in "Jedi".