Tempe, Arizona-based direct marketer of computers and software, Insight Enterprises Inc has a letter of intent to acquire privately-held Andataco Inc of San Diego for about $16.8m. Andataco sells Unix products into the client-server marketplace, generates about $100m in annual revenues, and it is claimed to be profitable, despite the lowly price being paid. The company supplies disk, tape, storage array, optical storage subsystems, and workstation and networking products.