Actually, I think I'll keep track of any alignment changes and how I brought them about here, could be useful for others.
BTW, now that I've used both Tears of Salieru Dei to up my CON, is there any reason for me to want to stay Lawful Good? Asking because I reverted back to NG in a dialogue and I would like to know what people consider the "best" alignment with regard to quests/conversation options/reactions etc. Personally I'm more of a NG roleplayer, I don't see my Nameless One as LG. But I'm enough of a power gamer to want to know if there are bonuses to staying Lawful Good
Anyway, the things I found out so far:
When trying to become a Godsman, once you find out Thildon was the murderer, he asks if you'll allow him to flee. Telling him he shouldn't and that the consequences will be worse for him if he does will change your alignment to LG or at least give you points in that direction.
If you go and tell Keldor that Thildon did it, but let Saros off the hook (i.e. keep still about his Anarchist affiliation) you can go and talk to Saros. Telling him how to be an anarchist turned me from LG into NG.