I would be for a sales tax, but only if it replaces ALL other taxes and fees, and if it was determined upon the retail item only. NO hidden taxes, and no multi-level taxes.
If this was the case, business would be relieved of the burden it bears in income tax and social security, which would be a boon indeed, and the cost of taxes would come directly out of the hand of the citizen. 50c on the dollar taxation hurts a hell of a lot worse when it is coming out of your own pocket.
Business to business transactions are not taxed (unlike the present system) since they are not consumption. It so states in the bill.