In addition to being more powerful, Windows NT has a lot of administrative issues that a Windows 95 user never has to deal with. You shouldn't buy Windows NT just because your technical people already use another version of Windows. They are very different animals, despite the surface similarities. It is fairly easy to set up either a Windows NT machine or a Unix box to work on a LAN, and to serve as a file or print server for other computers. But administering a web server and database remotely works differently, depending on the choice of platform you make.
Cost Price is always worth considering when making hardware and software purchases.
For example, Linux, one version of Unix that is gaining in popularity, is free. With a free operating system and the variety of free software tools available for Linux, your cost of software ownership could be as low as, well, nothing. In addition, the hardware needed to run Windows NT well is more expensive than the software necessary to run Linux, since you'll need faster equipment and more memory. There is also a web server bundled with FileMaker Pro, a database available on the Macintosh and other platforms. Publishing a FileMaker Pro database on the Web is very easy to do.