Niko:
I can put you in touch with my IT guy. He set it up. But it was cheap. And all the other wireless in the office work much faster now too!
You can use any computer as a standalone but with servers, you get mirror drives to back everything up.
If you are going to leave it this way, do not let the server computer sleep for now. If you are not using it at home, you can do that at night, but i use mine from home so i keep everything awake all the time.
Just a couple thoughts!