From a Newsweek blog:

Amount raised by the John McCain campaign in the two-and-a-half days after Alaska Gov. Sarah Palin joined the ticket: $10 million.

Amount raised by the Barack Obama campaign in the 24 hours after Palin delivered her speech at the 2008 Republican Convention: $10 million.
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Uniting both parties' bases in one fell swoop (or, er, woman): Priceless.

Although, it must be noted: Obama's post-Palin fundraising rate ($416,666 per hour) is more than twice as fast as McCain's ($166,666 per hour). Talk about reaching across the aisle.