I just finished the most incredible story The Difference Engine by copperbadge.

For anyone who's enjoyed my feeble attempts at writing sci-fi flavored CLex, I have to point you to this story. You don't need to be someone interested in McKay/Shepherd to be awed by the story of John Sheppard, the 'clockwork' man and his journey to rejoin 'humanity.'

Go and read. You won't be sorry.