Of the books I listed (see above), the ones I would most highly recommend:
"A Rumor of Gems"- Ellen Steiber (One of my current favorite novels!!)-- Probably my current favorite novel, I was completely hypnotized by this book: even bought it in hardcover, which is a rarity for me.

Excerpt from chapter 1 available at
her website.
"Wars of Light and Shadow" by Janny Wurts- An intelligently written (if a little wordy!!) series, where everything clicks together, and nothing is "throw-away". Interesting in that your pre-conecptions of characters are TOTALLY chagned from book to book, and no-one is black or white. Planned to be a 5-arc series, she's almost through the third arc. More info at
her web site. (She also does all her own art.)
Tad Wililams: Nothing specific, anything he's written is superlative. (Start with Memory, Sorrow, and Thorn, or Otherland, and work your way through the rest of his bibliography!!)
The "Wraethu" trilogy- Storm Constantine: Another series where the prose is hypnotic and compelling.
The Ring trilogy ("Ring", "Spiral" and "Loop") by Koji Suzuki. You'll recognize the first book as the basis for the movie of the same name, but each of the sequels completely redefines your person of the previous. Excellent, complelling stuff.