Is Georgia a toss-up state... already ?!

[Alcon]

I doubt it, unless Southern Baptist turnout is exceptionally depressed.

[Alcon]

The Barr effect? Really? Come on now.

I was kiddin' by calling it an "effect". But Barr winning 2% in GA rather than 0.7% nationally is entirely possible.

Is there any evidence to suggest that Barr voters are people who would otherwise vote for McCain?

I'd argue that there's evidence to suggest that Barr poll respondents are -- probably much moreso than actual Barr voters.  In fact, I think indications are that Nader respondents are more likely to be Republican-leaners.