Ok first of all I bought OS 10.0 server and sent in my coupon and it still hasn't arrived so I don't know what to tell you, but please people I understand software is really expensive and all and software companies gouge people but we need to support apple, so if you use Apple products and software please pay for it, if you install it and it doesn't work out ok cool, but if you install it and use it please pay for Apple stuff otherwise NT where it has a crazy liscensing scheme will stay in the spotlight. Also if you need to run a server and can't afford OS X server, OS X client has almost everything you would need, you just have to work a little harder.