Windows Server 2003 is a good combiniation of Windows Server 2000 and Windows XP. Both of those systems were excellent, but of course screwed up at times. Basically, Server 2003 is a hardcore XP system. It has advanced security features pleasantly coupled with a friendly-looking interface. I would recommend this system to advanced Windows users, such as IT pros, or big businesses who need constant Server access. Small businesses may want to go with the less expensive Small Business Server. Server 2003 ranges from $1100 all the way up to $4000 for a single license, a bit pricey for a small business.