What are the hardware requirements for a Simple File Networking server?

The following are minimum HW requirements for a Simple File Networking setup for serving ~ 50 players:

• A Gigabit switch
• A server with the following:
• A Gigabit Ethernet connection
• Xeon CPU or better
• 4GB+ RAM
• A RAID 5 volume (or some other RAID format offering a fast read performance)
• HTTP web server software (Apache, IIS, or other)