I work for a medium sized retail store with 15 locations spread out in a 100mile radius. I have been planning to implement a system to use some new retail software. We have here some outdated stuff. I would like to know if any experts have performed a new WAN configuration. I am thinking of going with a good sized server running windows 2003 for our main server room and small servers for domain servers only at the retail locations. The locations do not need to talk to each other, only the locations to the server and so forth. Asides from that, I know I am going to need some routers capable of handling VPN connections. My question is if having domain servers at each location necessary?? or can the workstations link up to the main server directly?? Also what routers do you recommend for this type of WAN config.