As always, the personalities of the characters are a HUGE part of the storyline. So, I've kind of bounced off of the ideas I've gotten with my previous D&D experience to create a list of basic personality alignments:
Basic Good--does everything for everyone, tries to please, etc.
Advanced Good--actually thinks about the things they do, realizes they can't please everyone, does their best anyhow
Limited Good--does stuff for people, unless the stuff they do would somehow end up hurting themselves
Basic Self--does everything for themselves, doesn't really think about others, etc.
Advanced Self--thinks of ways to get more stuff for themselves, doesn't mean to hurt others, does it anyway
Limited Self--does most stuff for themselves, unless the stuff they do would hurt other people
Basic Evil--hurts everybody, no reason behind it, etc
Advanced Evil--evil genius type, thinks about ways to hurt people worse, actually has a reason
Limited Evil--hurts people, but if there's a chance it could go awry and hurt them, they'll give up and start over with a new plan
Basic Good--does everything for everyone, tries to please, etc.
Advanced Good--actually thinks about the things they do, realizes they can't please everyone, does their best anyhow
Limited Good--does stuff for people, unless the stuff they do would somehow end up hurting themselves
Basic Self--does everything for themselves, doesn't really think about others, etc.
Advanced Self--thinks of ways to get more stuff for themselves, doesn't mean to hurt others, does it anyway
Limited Self--does most stuff for themselves, unless the stuff they do would hurt other people
Basic Evil--hurts everybody, no reason behind it, etc
Advanced Evil--evil genius type, thinks about ways to hurt people worse, actually has a reason
Limited Evil--hurts people, but if there's a chance it could go awry and hurt them, they'll give up and start over with a new plan