I would buy an application server like Windows 2000 Server and configure Terminal Server. This will allow you to run dual CPU's and faster SCSI drives. Of course, you should also beef it up with memory. All the processing will be on the Server, which will greatly improve client performance. Windows 2000 Server costs around $750 and requires client access licenses as well as Terminal server licenses but should be cheaper than buying all new PC's.
Dig deeper on LANs (Local Area Networks)
Related Q&A from Retired Expert - Joel Johnson
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.