EXS 24 Logic Sampler Users Group

I am finishing setting up my system:

MAC G5 dual 2.7 gig
4 gig ram
OSX 10.4
Logic Pro 7.2
Final Cut Pro
Two= Internal 250 gig SATA 7200 rpm hard drives
One= External 300 gig Maxtor 7200 rpm USB 2.0 /Firewire 400 hard 
drive

I plan on running programs DAW, plug in samplers/players on the main 
drive and recording audio, film scores, etc. on the second internal 
drive.  I have the Maxtor to store projects on.  I would like to 
keep my system uncomplicated and "clean" and therefore would like to 
store all of my samples for EXS 24 on a second external Maxtor HD 
and access/load them when I want to use them.  I would also like to 
keep the large sample files of other samplers/players such as BFD, 
Garriton Orchestra, etc., on this second Maxtor External Hard 
drive.  Does this seem like the most logical set up?  If NO, please 
recommend a better way to go?  Thanks