Jack/Daniel
* A Heart For Every Fate (http://www.lyricalmagic.com/fate.html) by destina - AU from "Torment of Tantalus" - Jack and Daniel are stranded on Heliopolis. Possibly the only time I've believed Jack/Daniel completely.

* System of a Down (http://www.butcheredart.net/Fiction/SystemOfADown.html) by M. One of those fics that explores a different way Daniel could have descended. Mostly a fantastic gen-like story with blink-and-you'll-almost-miss-it Jack/Daniel. Okay, maybe a bit more than that.

* Half-Crazy (http://teand.livejournal.com/67208.html) - Okay, I admit the Jack/Daniel may be my least favorite part of this fic (not cause it's bad, but because I like the rest better), but I still love the fic. Daniel has to give up one memory of each of his teammates in order to set them free.

* paian has an amazing way with words and writes great Jack/Daniel, but it's often very porny. I don't think you'd be interested in her series of "Lost City" tags but you might try syllepsis (http://paian.livejournal.com/2084.html). Also her fic tag (http://paian.livejournal.com/85122.html#cutid1) to "Family Ties" is mostly SG-1 porn but made me hate the episode much less.

Sam/Jack
* It's dark (written for the dark ficathon) but I love surrealphantast's All We Need of Hell (http://surrealphantast.livejournal.com/285679.html).

* syxp wrote very believable, well-characterized Sam/Jack babyfic: Turn and Face the Strain (http://syxp.livejournal.com/19477.html).

Other Pairings

* pellucid has written some great Daniel/Janet. I really liked If you're thinking of leaving (you're leaving at a very bad time) (http://pellucid.livejournal.com/196753.html) (AU - fair warning that the author notes say "Only I could fix "Heroes" and make it even more depressing"). I also really remember liking some of grav_ity's Daniel/Janet but can't remember which ones specifically. They're all here (http://www.geocities.com/gravity_not_included/sg1dj.html).

* teaphile wrote Daniel/Rodney pre-Rising that somehow worked well for me. Stumbling Around (Underground) (http://teaphile.livejournal.com/294345.html)

* Switch (http://community.livejournal.com/oddball_sga/86656.html) is Daniel/John Sheppard and might be closer to PWP than you like, but it somehow worked for me.

* synecdochic is currently "not" writing a fantastic series (she refuses to call it a WiP) of an AU where clone-Jack (she calls him JD) gets together with a Cameron Mitchell who was left crippled after Antarctica. You can find them all at this fic tag: Take These Broken Wings (http://synecdochic.livejournal.com/tag/broken+wings) and her characters are just amazing.

* Downpour (http://www.littleheaven70.com/downpour.html) is Daniel/Vala set early S9 and the only fic I've found that plays with the idea of Qetesh having met Amaunet.

* The Dirt of Reaping and Sowing (http://salieri.bonuspoints.net/sowreap.html) by troyswann - Sam/Jack/Daniel (Teal'c exists later) apocafic. Long, intricate, amazing.

* I wanted to rec you "Wheel" by Brighid but I'm getting "URL not found" for the link I have. It's a stranded-offworld Sam/Jack/Daniel.

* I've yet to find a Cam/Teal'c that works for me (and isn't set during "Unending") (speaking of - when you go to [Bad username or site: friendshipper's @ livejournal.com] website, read her "Unending" tag) though it's a pairing that intrigues me. Cam/Daniel is my new shiny I like for some unknown reason, and yet I'm having trouble finding examples for you right now. Same for Sam/Vala.

and since you said self-pimps are okay, you've read my one Sam/Daniel piece but I'm still pretty happy with the (very plotty for porn) Jack/Elizabeth (http://abyssinia4077.livejournal.com/155252.html#cutid2) and Daniel/Sam/Jonas (http://abyssinia4077.livejournal.com/155252.html#cutid3) I wrote for the porn battle

*Speaking of Jack/Elizabeth! Ocean's Pull (http://havocthecat.livejournal.com/478875.html) by havocthecat sold me on the idea.