Amazon.com: 2nd SATA HDD SSD Hard Drive DVD CD ROM Optical SuperDrive Caddy Tray Frame for Unibody MacBook / MacBook Pro 13 15 17 Early mid Late 2008 2009 2010 2011 2012 : Electronics
15-inch MacBook Pro Mid 2009 Data Doubler 2nd Hard Drive/SSD Installation Video - YouTube
15-inch MacBook Pro Mid 2009 Memory Installation Video - YouTube