Ross Moorehead has a ladies road bike for sale (his mammy's). It's a Trek1000 about 4-5 yrs old. He says its in good nick as it hasn't been ridden that much. It's a small ladies bike.
If anyone is interested give me a shout and i will give you Ross's number (don't want to post here, the world is watching )
I can promise nothing... however as it's for my sister I doubt I would be allowed anywhere near her.
Also I don't know anything about girl's bikes. She is 5'6", would a small bike be the right size?