Hi! There are plenty of PCBs still available for anyone who would like to build their own home brew computer. Building a home brew computer is highly entertaining and a great way to teach about computer fundamentals, electronics, digital logic, etc. http://n8vem-sbc.pbworks.com/w/page/35044530/PCB%20Inventory These are available from myself and others on the N8VEM mailing list. Feel free to sign up and ask questions. http://groups.google.com/group/n8vem http://n8vem-sbc.pbworks.com Thanks and have a nice day! Andrew Lynch PS, all you need is the SBC V2 to start and it will boot to CP/M 2.2 from ROM with a RAM drive. Next builders add an ECB backplane, a DiskIO V3 for storage, and ColorVDU for display but those are optional.