Apple will demonstrate its latest hardware and software, and answer questions about the Mac.
Prizes - including four Hewlett-Packard 990CM printers and a top-of-the-range iMac Special Edition - will be up for grabs.
The iMac SE has a 700MHz PowerPC G3 processor, 256MB of RAM, and a 60GB hard-drive. Competitions are being organized in conjunction with Great Western Radio (GWR), the Bristol Evening Post and the Western Daily Press.
Other Apple partners will display Mac-compatible peripherals, including digital cameras from Canon and Kodak, printers from Hewlett Packard, and IBM's ViaVoice software.