I paid around 1200 for an entry level server tuning win sbs 2003 way back when. I must say it is extraordinarily reliable until you change a setting and then all hell breaks loose. Before breaking out a sweat and changing everything to mac, I considered upgrading the software only.... but then I heard how loud and compact a Mac mini server was, and the price.... and simplicity... ultimately my decision was easy. I can still turn the old server on but it makes such a racket. Anyway, it's there if I need it. The Bim Server will still run on sbs 2003, so it's a spare brick. I think the Mac mini with osx 10.7 server is very economical unless you have an old server hanging around with a bit of ram. Obsolete technology is a perfect candidate really.