While away, I popped in a car boot sale, and picked up
an Apple
 Mac LC III
 base unit for 50p!   Never having had anything to do with macs 
If you'd asked me you could've had one for nowt - I have many spares :)
  think I have spotted the video out (15 way D-type, and
have seen
 converters
 for them!)  but where on earth does one connect a keyboard and mouse? 
The ADB port (apple desktop bus?). The symbol for it is a vertical line with
3 dots on it. It's next to the printer port - the one with a little printer
above it.
  Internally, it seems like it might be complete: 80Mb
SCSI hard disc, one
 ram stick (one free slot) 68030 processor (and an empty socket next to
 it???)  is this right? 
Yep. The empty socket is for a copro. Beware though that the PRAM battery is
probably dead....if you DO find a monitor for it (and keyboard and mouse),
switch it on and get the 'happy mac' sound but no picture that'll be
what's
up.
cheers
--
adrian/witchy
www.binarydinosaurs.co.uk - the online computer museum
www.snakebiteandblack.co.uk - monthly gothic shenanigans