Thanks for the replies, everyone.

I still haven't found a bike... I didn't realise at the time how incredibly lucky I was to find my Dawes Galaxy for £70 just a few years ago! Deals like that don't come around very often.

I am reluctant to spent £1000 on a new bike when I know there are thousands of great machines out there somewhere, which I could have for £50-100. But how do we find them? Hmm