I'm about to leave for a football game. So I may have to answer this in the evening. Have you officially incorporated and elected S-Corp status?
If you have and you're looking at a good profit, you are required to draw a "reasonable" salary. This is equivalent to what an employee would earn doing your same tasks.
Let's say you claim half--$50,000--as salary. You'll need to pay $7,500 in for self-employment tax before besides having income tax withheld. This means you'll need to sign up for the IRS's EFTPS which allows you to go online to pay your taxes. After this, you'll need to file quarterly payroll tax returns with the IRS, and your state. You'll issue yourself a W-2. But, only your wages will be subject to self-employment tax. Plus, your S-Corp will show about $46,500 in net income--$100 K less $50K wages less 1/2 SE tax.
You'll show the net income plus your wages as income on your tax return. Without knowing your other sources of income and what itemized deductions and/or tax credits you can take and how many exemptions you'll claim, I can't accurately tell you what your tax burden looks like. Thanks, Bill