O.k., I am trying to research out what our best bet for our next server would be, we currently only use our server as a file server. The problem that we keep running into is that we keep filling up the drive that we use for shared storage rapidly (We upgraded from a 500 GB drive to a 1 TB drive about 4 months ago and we already are down to about 200 GB Free). I noticed that the OS X servers have a device that you can buy with them that would help solve this problem in that you can plug one in and then it will be the hard drive, when that one starts getting full you plug another into it and it makes it appear to be one even larger hard drive. (At least that's how it reads on Apple's website) and I have not been able to find a similar system for Windows (although there may be one). So what I want to know is given that 90% of our systems are Windows systems will OS X Server be a good fit for us. We also have about 30 users. What are the downfalls of OS X Server? What is the upside of OS X Server? (aside from it's OS X and crashes less) I have also noticed that OS X Server appears to have an Apple version of Exchange built in, how well does it work? And how well does it work with Outlook? Anything else that we should know when comparing them? Doing price comparisons the hardware for both come out to be about the same price for the same specs, but the Mac comes out cheaper on the software end as it offers unlimited licenses.