I would like to get advise of the experts regarding how I should setup my network.
We have 500 desktops running XP. 15 server running server 2003, one exchange server running exchange 2003 and ftp, one applications server, one data server, one cell phone server. 1 Barracuda firewall. 25 switches connecting to a core switch. One PIX firewall and then a 10mpbs optiman circuit for our internet connection. No routers.
We also have a wireless network with approximately 15 wireless switches and 100 wireless access points.
We also have two other locations connecting to the main locations using a point to point. They share services from the main location.
I would like to create a secure network that is reliable.