Just a couple days too late for Christmas, but a fine selection if you're in a position to be giving belated gifts or New Year's gifts.... Elizabeth Bear's Hammered. Also known as matociquala, you can find an excerpt here.
Released in October 2004, the first book in Jim Butcher's new high fantasy series: Furies of Calderon. It's already gotten a *great* review from Publisher's Weekly. (The sixth book in Jim's popular Dresden Files series was also released this summer: Blood Rites).
Jo Ann Ferguson's The Perfect Bride (October 2004) - for those of you in the mood for a traditional regency that is the start of "a new trilogy devoted to the three Dunsworthy women, and her inspired use of an interesting historical moment and the Plymouth setting [which] gives her latest charming Regency a refreshingly different flavor" (Booklist).
suricattus' (otherwise known as Laura Anne Gilman) Staying Dead (August 2004), the first novel in the adventures of Wren and Sergei (oft featured in short stories). You can find more details here and the book made this month's Locus Bestseller list too!
Deborah Grabien (AKA debg) will have her second novel about ghosts, music and mystery released in November, just days from now. It's called The Famous Flower of Serving Men, and has already garnered great reviews from Publisher's Weekly, Kirkus, and Library Journal.
Brenda Hiatt is the author of fourteen novels, most of them set in her beloved Regency England. The most recent is Taming Tessa (September 2004) - "This charming and entertaining love story, with its nice overview of hunt clubs and riding to hounds, is ideal for the horsewoman in all of us" (Romantic Times 4 star review).
John Pelan's A Walk on the Darkside (September 2004), the third volume in his non-themed horror anthology series - including an original story from Caitlin R. Kiernan. The first book in this series won the Bram Stoker Award a couple years back.
Patricia Rosemoor's In Dreams (September 2004) from Harlequin's hot Blaze imprint. The author's fourth book for this line, she has written many others for Intrigue.
Coming in December, Mike Shepherd's 2nd book in the Kris Longknife series: Deserter. A novel of military science fiction, hailed as "fast-paced adventure" by Booklist and featuring a kick-ass heroine living in a complicated universe.