(see http://www.freecycle.org) I have a set wheels in excellent condition (ambrosio rims with 8 speed campag mirage hubs - I think) that need a home. Happy for then to go for free on the assumption they will be used and subsequently passed on as per Marco's shareware concept.
Only cost will be that whoever gets in first will have to pick them up. I've also got a spare 8 speed front and rear mech to go with them.
Bri