Here is my situation: I have a MacBook Pro with a 320GB HD. I also have a 2 TB external hooked up to my AirPort Extreme. I shoot weddings, some fashion stuff and am a student. The problem I have is my aperture library is getting too big to keep on my laptop and keeping it on the external drive is REALLY to work from. How do those of you with MBPs and limited space deal with growing libraries?