-Tales of the Otori
-Keys to the Kingdom series
-The Jelindel Chronicles [Think that's how you spell it... XD It's was written by Paul Collins]
-Tamora Pierce's series are good, especially with the Circle of magic.
I've read most of her other books (Tamora Pierce), but never the Circle of Magic ones...I liked the other ones though so maybe I will give them a try, because in a few days when I finish my current series I'll be in need of new reading material
Just looking over at my bookcase, I saw my Sara Douglass collection I love Sara Douglass. I always get so emotionally involved with the stories and characters...because I hate them so much...
yeh some of the books i recommended aren't trilogies. (actually most of them for those of you who dont read). Many have more than three books.
As to the chrestomanci question:
Im not really sure why i put it in, its not really one of the best books ive read. But i wouldn't call it bad either, its alright.
I love the "Tomorrow" series by John Marsden, and am still working my way through the final set of 3 books "The Ellie Chronicles". In the past I have read my way through most of the "Dragons of Pern" series by Anne McCaffrey and also the "Dune" series by Frank Herbert. I am also currently part way through the "Twilight" series by Stephenie Meyer