I am eventually going to run out of space on my Macbook Pro as I import the photos from my iPhoto libraries to Aperture 2.
This means I will have to maintain a smaller library on my MBP (containing current projects), along with a larger library on an external hard drive. Looks like it is pretty easy to do.
I figured out that double-clicking on any library will launch Aperture 2, and I love the idea of creating shortcuts to each library on your desktop or dock for easier access.
Here’s what I learned: Links for managing multiple Aperture 2 libraries