Well. I am looking at the 13.3" Unibody MacBook Pro and wondering if it is a worthwhile trade to sell my 15" Santa Rosa (first LED backlit) MacBook Pro. I record and mix music with protools, so the DDR3 ram should help with performance. The clock speed is relatively unchanged. I am willing to sacrifice screen real estate for portability because I have a 20" aluminum cinema display when I need it. Aside from the onboard graphics not having dedicated memory, is there any reasons I shouldn't sell my macbook pro for the new 13" one? As of now I can break pretty even because as a student I can get about $100 off & a free iPod touch that I can sell.