Long overdue, and very much a work in progress! Those that have comments are the ones that I've already recced in my LJ. This list just reflects my personal taste, and is not meant to be a comprehensive guide in any way. I love getting more recs, so do comment if you think there is something else that should be on here (I know I've missed some) but I am picky.
Sweeney Todd recs:
Fanfiction:
Gen
athousandwinds:
Sailing, Sailing, Over the Bounding Main And Benjamin will find his way home again by candlelight, or be damned. (PG)
athousandwinds:
Five Things Toby Wished He Didn't Remember (no rating, I'd say PG)
justsmashing:
Fellows They all deserved to die. Cleverly done two-in-one character study. (PG)
Melancholy Euphoria:
Did You Come Here for a Pie, Sir? What would happen if Hannibal Lecter somehow crossed the thresholds of time and ventured as far as Mrs. Lovett's Meat Pie Emporium? (PG)
Obscure Bird:
Kidney Pie "Sir I send you half the kidney I took from one woman. 'Tother piece I fried and ate. It was very nice." Jack the Ripper takes a stab at the ladies of Fleet Street. (PG-13)
pulchraverba:
Quiet. No maddening creaking tonight, on the floor above her head. That was new. Nellie Lovett had grown so accustomed to the sound lulling her to sleep at night that its absence was almost disconcerting. AU scenario with exactly the right tone. (R)
the_haunted_one:
From Mothers and Fathers Come Sons Not everyone dies in the basement that day, and they do say death is harder on those left behind. (PG)
xcatladyx:
The Other Woman A short AU based on the question: What if the other woman had ended up in the oven? (PG-13)
Sweeney/Lovett
athousandwinds:
The Bloodsuckers "What feeds me destroys me". Wonderful portrait of Mrs Lovett - her voice is spot-on - and the dynamic between her and Sweeney. (PG-13)
das_mervin:
Two Ladies Nellie Lovett was not a whore. (R, includes rape)
das_mervin:
Voyeur He could still feel them looking at him, their gazes so icy, those seven sentinels casting terrible judgment upon him, standing by Lucy’s side, and heaven help him…she was watching him, too. Even if Mrs Lovett gets her way, it's not going to change Sweeney's mind. Very plausible and completely awesome. (R)
das_mervin:
Propriety, and
pulchraverba's companion piece
Violation Sweeney-Lovett non-con, from two sides - because they're both disturbed and disturbing. (both R, includes or implies rape)
firexatxwill:
I'd Apologize "The truth is that you could slit my throat, and with my one last gasping breath, I'd apologize for bleeding on your shirt..." She notices the blood soaking into the ivory material of his shirt. (PG-13)
justsmashing:
Closed Benjamin Barker comforts his neighbor. BenLucy, BenLovett. Sweeney and Mrs Lovett in happier days - for one of them, anyway. A believably bittersweet moment. PG)
sandsdream:
Not Barker It wasn’t like him to be so weak. Her pestering and needling and insinuating had worn him down until she’d almost had him half convinced that they could have a life, not quite like he remembered and not quite how she’d dreamed-or whatever pseudo-romantic drivel she’d actually succeeded in manipulating him with-and he was getting nowhere with his plans for the Judge, getting nowhere at all. (R)
sandsdream:
You're Warm In My Hand. Sweeney/Lovett/razors: Mrs Lovett spies on Sweeney. OT3 >:-) - beautifully observed and creepily sensual. (PG-13)
sweety167:
Courage, My Love Practical in theory maybe, but it certainly wasn't going to be easy. The first one is always the hardest. (PG-14)
veils:
five days later and she wants another teapot Mrs. Lovett’s full of four letter words and compassion - too much for someone like him. Pretty and twisted, just like them. (R)
Other/various parirings
athousandwinds:
Variations on a Friday afternoon Three ways to spend a Friday afternoon. Sweeney/Lovett, Judge/prostitute, Anthony/Johanna. (NC-17, rape implied)
Fic recs on fanfiction.net.
Vids
They're Coming To Take Me Away Ha-Haa!! (Sweeney)
#1 Crush (Sweeney/Lovett, gorgeously creepy)
Deep In My Pie - A Sweeney Todd and Mrs. Lovett Love Story Girlfriend (Lovett/Sweeney/razors)