Small Project Starter Suggestions

I've got an old server and some machines not in use that could be useful for data-logging and internet access in a science lab. The machines don't have CD-ROMs so I'm thinking I either end up sticking a cd-rom in each machine to build it, or get the workstations to act as dumb terminals connect to the server - I have a 100mb switch and the machines have Intel pro cards in so should be acceptable speed. Any pointers on a good way to go forward, what to read and where to start? -- Glenn Cameron King Henry VIII School, Coventry