Mac Mini as a Server

[Martin Marcher]

Hello,

I'm thinking about getting a mac mini as a server. I know I/O won't  
be too good since the components aren't really server components.  
What bugs me is that I'd like to have it as a Xen host which needs:

  * A fully supported Ethernet card to have bridging work right
  * the possibility of attaching the mac mini to a NAS (Gigabit  
networking is built in so bandwith shouldn't be a problem)

Anyobody using mac minis as a cheap drop in server to do some testing  
and other stuff? Any Recommendations are welcome...

thanks
martin