Robert R. McCammon's a great read. Funny, They Thirst is the one hardest to get into for me, but Wolf's Hour, Swan Song, Stinger, Mystery Walk, and Usher's Passing are pretty damned good. My all-time favorite book (period) is his Boy's Life, I literally read my coppy to tatters...twice. Also Speaks the Nightbird parts 1 and 2 are good. But McCammon is like King in that he's not solely a horror author, but there are dark elements (or macabre if you prefer) that slip into his works.
John Saul, though he has gotten a bit formulaic, has produced such classics as Nathaniel, Darkness, Suffer the Children, When the Wind Blows, Cry for the Strangers, Sleepwalk, The Unloved and The Unwanted. Again, he writes a more subtle horror.
There was a time when there were only five horror authors on the bestseller lists: King, Koontz, Saul, McCammon and Straub. All worthy of reading.
Then Clive Barker came along with Weaveworld, The Books of Blood, Cabal, The Great and Secret Show, The Inhuman Condition, In the Flesh, Imagica and The Damnation Game.
Gary Brandner's The Howling was an excellent book.
I enjoyed Brian Lumley's Demogorgon, House of Doors, Maze of Worlds, Necroscope, Vamphyri!, The Source, Deadspeak, Deadspawn, Blood Brothers, The Last Aerie, Bloodwars, Psychomech, Psychosphere and Pyschamok.
Then there's Dean Koontz's Whispers, The Mask, Night Chills, Phantoms, The Bad Place, Cold Fire, Strangers, Lightning, Hideaway, and The Servants of Twilight.
Anne Rice, An Interview with a Vampire, The Vampire Lestat, Queen of the Damned, Tale of the Body Thief, Memnoch the Devil, The Vampire Armand and Servant of the Bones.
Historically speaking, any Lovecraft (or his friend Robert E. Howard, who wrote Conan also wrote Solomon Kane, which is horror), Robert Louis Stevenson, Mary Shelly, Bram Stoker, or Edgar Allen Poe.
