Today’s Presales: Wednesdat, October 6, 2010 Oct 18 Mon Grouplove Mercury LoungeNew York, NY06:30 PM Buy TicketsAmex presale begins:Wed, 10/06/1012:00 PM Oct 20 Wed Head Automatica Music Hall of WilliamsburgBrooklyn, NY08:00 PM Buy TicketsAmex presale begins:Wed, 10/06/1012:00 PM Oct 28 Thu Palmdale Mercury LoungeNew York, NY06:30 PM Buy TicketsAmex presale begins:Wed, 10/06/1012:00 PM Nov 1…