Studio Paint Color

So I'm ready to finally paint the wall of my studio, but what is the perfect paint color for a studio?
And how does one find it?

Some time ago, long before I had plans to build a studio, I read this post on the Portrait Artist Forum:
http://forum.portraitartist.com/showthread.php?t=6468&highlight=studio+wall+color

So at that point I had an idea of what color I should paint my studio, a gray green color. And now, since I've been studying with Bill Whitaker, Bill has told me that there's a color already out there from Benjamin Moore called "Mohegan Sage" that is very close to the color he was writing about in his tread but even better. And this is much easier to get since this is a "standard" mixture from Benjamin Moore and most paint stores will be able to mix this color without any problem.

Here's a picture of Mohegan Sage on the wall:

and here's the freshly painted studio--getting close to rolling in the easel!

Thanks to Jared for helping me getting all this color on the walls.