This is one of my favorite questions. It is like saying, "I have decided to buy a car. Which one should I buy?" The answers are endless.
The setup James has recommended will serve your needs. You just have to understand it is Dell's lowest end tower server. Personally, I would not go below the T410 or T610. The 610 may be more than you need, but Dell considers it the replacement of the PowerEdge 2900 which was pretty much an industry standard for a SMB. It all depends what you are looking for. You are going to have to do a little research. If you ask 100 people, you will get 100 different answers for RAID. You will also need a RAID card. Go to:
http://www.dell.com/us/business/p/poweredge-tower-server-deals?cat=poweredge-tower-server-deals&dgc=IR&lid=&cid=us:en:bsd:enterprise-products&ref=gzilla
Click on the compare boxes and compare six. That will get you started. While James has you will two drives which gives you two empty drive bays, if you need six down the road, you will need more than the T110.
So, there is no right or wrong.
