This should probably be posted in the SNG forum.

You've basically got 30 buy-ins for the $10+1s...that's okay but not great for a beginner. I'd stick with the $5+0.50s for now if I were you.

Your last question is way to general, so for a general answer I'd say read all the strategy stickies in the SnG and MTT forums. Others can advise on SNG software etc.

Welcome to FTR, btw.