Fark (of all places) linked up what might be the Republican's "secret weapon", elimination of the IRS:

The Speaker of the House will push for replacing the nation's current tax system with a national sales tax or a value added tax, Hill sources tell [The Drudge Report].

Yeah, I know, Drudge. Still, it's awfully tempting to think about. Whether or not this fairs any better in the media than the flat-tax did a decade ago is, of course, an open question. There are extremely powerful interests vested in keeping the tax code as tangled as possible, and they don't all claim to represent the rich.