EXS 24 Logic Sampler Users Group

I am about to get a titanium G4 and a large external firewire for tracking.  
I am also wanting to store my sample libraries and exs folders on the 
firewire drive.  Will the performance (maybe in terms of latency) of the exs 
suffer because the samples are on the firewire, or is it better for them to 
be on the internal drive (hopefully not!)

Thanks,

kurtgoebel@...