I ended up using Turbo Tax to generate the amended return which was mostly correct. Then I chose the mail in my return option, saved the forms to my computer, and altered them with the corrections I needed to make. Not the most optimal solution, but it did save me a lot of time.
In the future, it would be nice if turbotax enhanced the online process so the amount paid to the IRS (line 18 on form 1040X) can be modified and factored into the equation.
