I had expressed interest in the C3 (and had received the same form letter you all did), but I will not be participating in any eBay auction. They are for me a waste of time and effort. I would like to have a C3, but not as much as many of you out there. My reasons are purely sentimental; a family friend bought one for his home bsuiness in the late 1970's, and I went over to his house on numerous occasions to play with it. I thought the triple CPU design was slicker than owl snot. I'd just love to play on one again. I guess I'd rather borrow one than buy it. More to the point on OSI hardware, I have a C4P motherboard and service manual somewhere in storage. At one time, when I was almost exclusively into 6502's, I had entertained the notion of building enough stuff to make this board do *something* useful. I no longer have the time to even consider such a project. I am writing to poll for interest among OSI collectors for such a beast. It's not a computer, only the mainboard. If you don't have a C4P already, this is of virtually no use. I have never even powered it on. If there are any takers, I will make an effort to dig it out. Trades are welcome as well as cash offers. I will *not* be auctioning this off on eBay or any other web-auction service. -ethan