UPDATE: I posted this on July 3, and four days later it's official. Obama will make his acceptance speech at Invesco Field. Remember -- you heard it here first!

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Rumors are flying hot and heavy that Barack Obama will make his acceptance speech on the last night of the Democratic convention not at the Pepsi Center, which can seat 21,000, but at Invesco Field (formerly "Mile High Stadium").

That's the home of the Denver Broncos, and seats 75,000!

What better way to end a convention? Of course, that begs the question -- from where do they drop the balloons? On the other hand, it may be for the best after the balloon disaster at the 2004 convention in Boston (I'll never forget watching CNN and hearing somebody off-camera yelling, "where's the f***ing balloons!").