Hi,
if you are interested in poker in general and SnG play in particular this lecture might be interesting for you.
The online learning platform coursera.org is offering a lecture on game theory starting at 7.1.2013.
The lecture will be six weeks long with a usual work load of 5-7 hours per week.
It is held by Matthew O. Jackson, a professor of Economics at Stanford University. It is completely free and you can get a statement of accomplishment if you pass the course.
If you are curious how Nash equilibria can be found and what game theoretic optimal play is all about, this lecture will be amazing.
Cheers,
Bobbs