What do I need to Know for playing Sng?

[Leo317]

I was going to start playing more sng. I was wondering what do I need to know? How big of a bankroll do I need? How often should I be in the money? What kind of ROI should I try to achieve? Any books or posts that i should read(already have read Aleomagus post)? Is it worth play stud or try to stick to holdem only? Do I need to consider anything else? Thanks in advance for any help! [img]/images/graemlins/smile.gif[/img]