Hey guys... I am new to the Mac world and I'm in the market for a MacBook Pro. I will be using it solely for digital music and running my digital DJ software on it. Quick question, which of these 2 models will be better suited for my needs? I don't think retina would be necessary, but I do want it! Main thing I want to know is the difference between the flash and Serial ATA. Will one be faster than the other? Will one hold more songs than the other? How much more? MacBook Pro 2.6GHz Quad-core Intel i7 with Retina Display 8GB of 1600MHz DDR3L SDRAM 512GB Flash Storage vs ($130 price difference) MacBook Pro 2.7GHz Quad-core Intel i7 8GB (2 x 4GB) of 1600MHz DDR3 SDRAM 1TB Serial ATA @ 5400 rpm Thanks guys!