here is a reply I got to my posting re linking two computers,
Switcher Thu, 30.01.03 | 17:12 If you fit a removable HDD carrier rack to each PC you will be able to transfer files easily using a travelling hard spare hard drive. The carrier rack fits in to a spare 5+1/4 bay and costs £9-00 each. The hard drive fits into a cassette whch slips easily in and out of rack.
I have two of these on my PC and can swop hard drives in seconds I don't know why manufacturers don't supply cases with these as standard.