Ok, here goes. I am very new to the Mac world (except an iPhone 3GS), and am seriously concidering migrating from a PC (laptop/desktop) to a Macbook Pro. I have read the buyers guides, and searched around this site, but still have a purchasing question. On the Apple site, there are two 15" MBP for sale and at the same price ($1529.00). They generally have the same specs except the processor/speed and graphics chipset. That being said, which would be the one to purchase? Here are the specs: Refurbished MacBook Pro 2.66GHz Intel Core 2 Duo 15.4-inch LED-backlit glossy widescreen display 4GB memory 320GB Hard Drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) SD card slot Built-in 7-hour battery NVIDIA GeForce 9400M + 9600M GT with 256MB Illuminated keyboard Refurbished MacBook Pro 2.4GHz Intel Core i5 15.4-inch LED-backlit glossy widescreen display (1440 x 900 pixel) 4GB (2 x 2GB) of 1066MHz DDR3 SDRAM 320GB Serial ATA @ 5400 rpm 8x double-layer SuperDrive (DVD±R DL/DVD±RW/CD-RW) NVIDIA GeForce GT 330M graphics processor with 256MB of GDDR3 memory Thanks in advance for any input and assistance.