I've ordered my first ever Mac: a 3.33ghz 6-core. I'll be audio and photo editing in the main, using Aperture and (when it's released) Adobe Audition 4.0. I've got 2 questions though: 1. How large does an SSD boot drive need to be? 2. If I run 2 x WD Caviars as a raid scratch disk, should I go for the quieter Green model (I want the MP to be near silent) or the faster Black version? Thanks.