Please do yourself a favour buy an actual server instead of putting SBS on that desktop you call server. This whole "it's good enough, it works, its cheap, we're only a small company, blah blah blah" attitude is the reason you were in a panic on the forums earlier. Buy a little piece of mind, it isn't that expensive.
Our "so called server" was built as a server, its also better than most cheap branded servers both on power and redundancy so i dont feel inclined to change it any time soon as we will lose power and money gaining nothing!