pledgingto

To be more precise, Amazon Flexible Payments Service (http://aws.amazon.com/fps/)

"Make sure that you have your business basics down first. Proper business bank account(s), incorporate earlier, record expenses properly, keep receipts, and get your accounting straight. It’s very hard to switch things over later, so invest some time at the outset and get it right."

How hard is it to switch from sole proprietorship to s-corp/llc if you keep your accounting straight and use your personal bank account?