EXS 24 Logic Sampler Users Group

Hi all,
I'm getting ready to buy a new Dual G5 to run VSL on the EXS24.  How 
much of the 8GB that the box can hold can Logic access for the EXS.  
I've heard that it can only use 4 gig and there's no point in having 8. 
  Is this right?

Thanks a bunch
julie
www.julielarson.net