Linux + SAMBA = 2.5 times faster than Window Server 2003

This is not me saying this, this is an IT Director. Does Linux need to be everywhere? No, but there are benefits to your organization when it is deployed. While you may be thinking of the cost factor of running only one OS such as Windows Server 2003, you lose on the performance side, or you have to upgrade your exixsting server to something more powerful to handle the performance. That, once again, incrases your costs. Poor quality ALWAYS costs you more.