Recently I bought a D-Link DNS-323. It is a diskless server .... well you have to buy the disks you like. I haven't had time to play around with it, but I will.
"Mommy, Why is There a Server in the House?", my kids would ask me that question not their Mother!!! The kids might ask "Mommy, Why has Daddy a New Server in the House (he got at least four already)?"