advice on mobile studio


Hi fellow Logic geeks....

I'm currently running a Mac Pro with Mountain Lion and Logic Pro X.

I would like to set up a mobile system with a new Macbook Pro, a small portable keyboard for MIDI input, an audio/MIDI interface, and an external drive with my sound libraries. I would think it would have to be a solid state portable drive, or could Thunderbolt work ?

I know how to set the system up, that is easy enough, but my question is : in moving sessions back and forth between the laptop and desktop systems, how do I keep updating where it can find the sound libraries? Will I just have to manually click to find the library every time I open a session in a different system, or is there a way to set up two different profiles ?

Hopefully this makes sense to someone.....

Thanks in advance !