Re:
As bag puss said they can go for very good money. I've seen ones go for close to £1000 on ebay before and for less than £500. I think a lot depends on the originality, paint scheme and what spec it is-ie if it has an asc hub, bluemels noweights and all the original bits and is in the flashier paint/decal scheme then they can go for quite a bit.
That said, if you have a moment of madness and wish split it you can always sell me the cranks and pedals and bluemels no weights as I need them for mine. Do you have any photos?-I'd be interested to see it.