calysta18 writes the most awesome slashy angst and I'm pretty sure all with a happy ending...and anything you don't find on her LJ is here, at the Sam/Dean archive
Calysta's Page (http://samdean.archive.nu/viewuser.php?uid=329)
I'll self-rec my own slash, but I don't write too much angst, but I do have happy endings all-around -
huntress69 - I don't believe in unhappy endings at all....