I need to replace a G5 Xserve. It is attached to an Xraid with 2 TB of storage via Fibre. It also has a scsi Exabyte tape carousel for Retrospect backups. The Xserve runs Tiger 10.4.11 server and runs built in mail for 50 clients, as well as file serving and managing these 50 clients (40 of which are macs, 10 are Windows XP) Of course I want a cost effective solution which maintains storage and backup. I appreciate ALL opinions, and thank you in advance.