Mark Cavendish, the best UK cyclist?

I don't think sport will ever be 'pure' like some people want. We could compete completely naked, eating the same diet, and wait a few thousand years to see evolutionary gains come into play, but let's face it, civilization is too impatient for that kind of thing. And I'd rather see sport as the arena for showcasing/developing technological enhancements of all kinds, rather than war.

Me too. It's just a shame that the UCI has hindered the technological advance of bicycle technology with it's artificial weight limit and other regressive rules, especially for track bikes, whilst turning a blind eye (and I'm being generous here) to the unfettered use of pharmaceutical products.