Network Setup for Non-Profit Org

Would like info on best route for setting up a lan for small non-profit organization. There will be aprox 15 users, Will be using microsoft office professional. Will need to be able to print brochures, will have a database program containing client information, caseloads, etc. Maybe MS Access, have looked at commercial packages. Would like to connect another building to the server. That building is about 8 miles away. Biggest concern is being able to look at client records from either building.What type of operating system, server power, workstations is recommended? Connection between the building? 56k, t1, routers, etc. Thanks for the help. Budget around $10,000.