So I've been reading this Harry Potter fanfic.
*pause for effect*
It's about what might have happened if Harry had instead been adopted by a professor of biochemistry at Oxford.
*pause for effect again*
And it's actually really really good. Perhaps you've even heard of it. It's called Harry Potter and the Methods of Rationality. It's very well written, very funny, and very clever. ("You're giving me a TIME MACHINE to treat my SLEEPING DISORDER!?")
The only problem is that it's not done yet. Aside from that, I cannot possibly give it too high a recommendation. Bear in mind how absurdly geeky such a thread makes me look, and it's a worthy sacrifice to tell people just how good this work is.
Here's the link. Give it a try. If it doesn't suck you in with the first 5 segments, or even the opening paragraphs, I'll eat my hat.