Phantom Limb (McKay/Sheppard)
It's beautiful and rich with angst. Almost too angsty for me, but that isn't even remotely a criticism. It's all good. It's just painfully good, and made me cry. And I'm faint of heart. I like happy endings and stories about kittens. So it's aerobic reading--tension, heart racing, gut knotting anxiously. It's amazing.
I don't know where I came across this, or I'd thank whoever it was that posted a link; maybe it was on the sga newsletter? It's a newly posted story.