What is the best method to track potential Sales Tax on orders?

As a manufacturer we have not had to be too concerned about various State Sales Tax however with the recent ruling on Internet Sales and us putting up a new website for consumer sales we wanted to start tracking our Sales to customer that are not Tax Exempt in other states.The initial thought was to designate the customer taxable with a Tax Area of "Out of State (OOS)" and a tax rate in the tax file, F4008, as 0.00%. Would the Sales Order Entry system go south with a setup like this or would it put records into the F0018