I am looking for some good WAN design examples that an Architectural firm would implement. Here’s the situation. I have a customer whose head quarters are located in Central Nebraska. They specialize in designing and building churches throughout the country. They are interested in putting offices in Chicago, DesMoines, and Denver. At the HQ site they have an NT server 4.0 with Exchange Server 5.5. Their main apps consist of Architectural programs such as AutoCAD and other rendering programs. The goal is to eventually setup architects working on their own at each location, but until then they have to work with Construction Project Managers over some kind of remote connection which may require some heavy file transfers. We have looked at putting a BDC server at each site and using a 56K Frame Relay point-to-point connection between all the sites. We have also looked at utilizing this connection using the Internet and VPN without BDCs. The final design decision must be very scalable due to the rapid growth that is expected. They may start with 5 – 10 users. But quickly grow to 100 to 150 per site. The transfer of AutoCAD files is the main concern. In detail this consists of viewing drawings at HQ and the remote site, making changes at either location, and printing out the design to plotters at either location. The second priority is the use of Exchange Server. They must be able to communicate extensively via their Outlook 2K with each remote site. I am very curious to know what other Architectural firms have implemented concerning this type of WAN network design. Please feel free to send me any additional questions that you may have. Viso drawings are available of our proposed design if that would aid inanswering questions. Any comments would be helpful, thanks.