I have to come up with graphs that show the need and frequency for upgrading hardware and software for our customer. At our site we only have 33 computers in the LAN with a dual pentium 200 Mhz server running NT 4. We run several overhead intensive database programs. I’m only 3 months into this job and I don’t have access to past records so I would appreciate information from anyone with experience in how often upgrades should be done for a small site.