need help deciding. I do web browsing, video streaming, music, and some editing. I am going to start designing soon for college. which is better bang for buck or just better overall between these 2? 13-inch: 2.7 GHz (2011 model... higher end 13") * 2.7GHz dual-core Intel Core i7 * 4GB 1333MHz * 500GB 5400-rpm * Intel HD Graphics 3000 * Built-in battery (7 hours) * $1,399.00 (this is price with student discount.) OR 15" Refurbished MacBook Pro 2.53GHz Intel Core i5 * Originally released April 2010 * 15.4-inch LED-backlit glossy widescreen display (1440 x 900 pixel) * 4GB (2 x 2GB) of 1066MHz DDR3 SDRAM * 500GB Serial ATA @ 5400 rpm * NVIDIA GeForce GT 330M graphics processor with 256MB of GDDR3 memory * $1,439.00 please give opinions thanks.