Public transportation and parking info

Getting to, and parking at, the Philadelphia Marriott Downtown:
http://marriott.com/hotels/maps/travel/phldt-philadelphia-marriott-downtown/

Parking facilities near the Philadelphia Marriott Downtown :
http://www.philapark.org/parkinglocator/parking_locator.aspx?destinationID=29
(scroll down the page a bit)

Trains and Rail Lines:

New Jersey Transit's Atlantic City Rail Line (Atlantic City -- Philadelphia)
http://www.njtransit.com/pdf/rail/r0090.pdf
SEPTA
http://www.septa.org/
AMTRAK
http://www.amtrak.com/servlet/ContentServer?pagename=Amtrak/am2Station/Station_Page&code=PHL