Not-remotely-unbiased rec here. This story blew me away from the first piece I saw. Seriously, go read, even if McKay/Zelenka doesn't ordinarily turn you on. The slash is the least of the many many gorgeous things about this story. For that matter, if you're not an SGA fan, read it anyway. It's one of those stories. *g*
The Secret Life of Scientists by
julad ETA: Just a warning -- this story has extensive spoilers for season 1 through the season finale.