Weregoat, I'm pretty sure he posted here instead of just searching Google because he wanted to discuss it and get advice. That's the point of the forum.
is a good article on bankroll management. Basically, there are three levels on BRM that it advises. 550BB would be a very strict, or Pro, bankroll for each limit. 400BB would be for a standard "Protected" bankroll. And 200BB would be for a risky "Unprotected" bankroll.
Hope that helps. Let me know if you need anything explained a little more.