As a general rule, you will pay more in tax and penalties if you DON'T go to a tax professional.  So you really can't afford to NOT go to a tax professional.

Seriously, go to a tax professional for a "consultation" NOW, and have the tax preparer do the corporate tax return for AT LEAST the first year.

And no, a S-corporation does not automatically save taxes.  Depending on your circumstances, it could even cost you MORE.  Again, go to a tax professional.