I know refurbs are getting slim in the Apple store. I want to find one before they are gone for good. It may serve as a temporary computer as we slowly transition from a 2009 Mac Pro to a new Mac Pro setup for my wife's photography business. Don't want to spring on a new Mac Pro, new Monitor, and new Thunderbolt RAID drive all at the same time. I'm kind of tempted by the server edition, but is it worth the extra cost? Can't you hook up two hard drives to the non-server edition? Which is the best value? I'm hearing everyone rave about the i7. Other than that, I don't know where to start.