EXS 24 Logic Sampler Users Group

I couldnt seem to find in the manually an 'Ideal' setup for your 
instruments and their audio files.
Right now I have my sample instruments organized the following 
way.
.EXS File is in its own folder (possibly along with others) and 
then I have the audio files in a folder that is located in the same 
folder as the sample instrument.
Example:
Harddrive/SampleInstruments/Drums/CoolDrums.exs
Harddrive/SampleInstruments/Drums/CoolDrums/Drum1.wav
Harddrive/SampleInstruments/Drums/CoolDrums/Drum2.wav
etc.

I do not have the audio files in the same folder, but rather within 
another folder. This just keeps me more organized.

I have seen instruments organized this way, and I have also 
seen them organized so that the audio files are in the same 
folder as the .EXS file.
Is there a proper way to do this? I am wondering if it is taking my 
computer longer to find the files since they are in a folder within 
the folder. And since I usually have 'like' instruments together, 
the program may search through multiple folders.
But I do make sure the folder containing the audio files is named 
after the .EXS file (except it is without the .exs extension). So i 
was thinking that it would check this folder first and should not 
effect the speed of loading.
I have a Dual 867 G4 with 768 MB of Ram. And when I change 
instruments while this song is playing, it takes a while to load 
and usually gives me the overload error. But if I stop the song 
and then proceed to load the instrument, it is fine.
Also, another I have to do sometimes is remove my one 
harddrive (just placing it in the virtual trash) because I have 
backups of my samples so I do not lose them in a computer 
crash. If I dont,  when I load a instrument, sometimes asks me 
which of the 2 locations I would like to choose the audio files 
from. This becomes annoying.

Pete