Erin Davie and Emily Padgett will be the guests today (Dec. 1 at 'Seth's Broadway Chatterbox' at 5 p.m. at Don't Tell Mama, 343 W. 46th St., NYC. Cover's $10 (which goes to Broadway Cares); two-drink minimum. For reservations (after 4), call (212) 757-0788. Official website: 'Seth's Broadway Chatterbox'