Need an Exchange Expert

Is there an existing network infrastructure in place, if so what kind of network is? (ie, win2k servers with winxp or win2k clients). Installing Exchange 2000 or 2003 in an existing win2k server environment shouldn't be an impossible task. If nothing exists at all maybe look at an all-in-one type solution like Windows 2003 Small Business Server which provides you with a file & print server, sql server, exchange 2003 email server and whole bunch of other stuff. I'm surprised if you can't get some local talent in NYC to help you with the install.