Will you be color balancing the lighting in the room as well? "Neutral" gray is only going to be neutral gray if the ambient lighting is balanced to your monitor as well, assuming you are talking about a room for digital work. Most of the rooms I've been in where this work is done are neutral in tone but have very subdued ambient lighting -- and the monitors are carefully tuned with products like the products from <A HREF = http://www.colorcal.com. ColorVision</A>.
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