[SoCalRugger]

I don't play SNGs, but here's the SNG forum FAQ on bankroll management:

If you are playing SNGs for a living, you should have as an absolute minimum, 100 buyins in your account. 200 would be preferable. For all serious players, 100 buyins is the standard, although there is nothing wrong with taking shots at a higher level with less. You can make adjustments for this depending on how willing you are to move down in stakes after a downswing. If you don't mind jumping around stakes, as few as 30-50 buyins might be enough. However, it is preferable to only move up once you have 100 buyins at a given level so if you DO happen to go on a bad run, you won't have to move down to recover. The reason is simple... assuming you're beating a given level, you will recover quicker playing the same stakes as opposed to attempting to recover at smaller stakes.