Mutsy- With a consumption tax, businesses would flourish because people would have more disposable income and could afford more goods and services.
They could also budget for luxury purchases and know how much they would need to save. For example, if you are buying a car that will have a surcharge of 20% you will most likely buy a cheaper car and maybe finance the difference so that it would not impact you as much.
It would take some time to getting used to but I think most people would like it. Also, foreigners would actually be paying our taxes as well so the burden would not be so high on the American family because these sales tax rates would be higher.