Looking to build a server for my company. I have an amd cpu, phenom 2 x4 i believe, tower, could pull up specs later when i am near the computer. Want to install a linux server os on it, prob. ubuntu because I am new to linux. The server will host my companies website and a database that will be accessed by 2 - 10 users. Will I be able to get by with this old tower, or do I need to look into getting a "server" to accomplish what i want to do? Also, would I need to purchase anything extra to set up a raid, or should be able to do that since I currently can and what RAID should I be using?