Help with buying servers

Does this so called "network" you have connect to the outside world? Are you planning on accessing or utlizing any services outside of your LAN?
 
Does this so called "network" you have connect to the outside world? Are you planning on accessing or utlizing any services outside of your LAN?
Such as?

We have a Cisco PIX 506e that serves as our firewall and VPN device. We have remote users VPN in and one (soon to be two) site to site connections via other PIX 506e devices.