I think alignment is something that can't really be decided upon when starting a character, but something that develops while playing the character.
It's all too easy, especially for beginners, to make the character do what 'we' would do morally, rather than what the character would do. Of course, a lot of the fun is getting the opportunity to do something we'd never do in the real world. That's where the Role Playing really comes into its own.
I think it's best to start off as Neutral and then see where your character takes you, and only make a 'formal' decision on alignment once you've got more idea how the character works.
Either that, or stay Neutral with the option to step either way as the need or mood takes you.
