More thrillers: Jeffrey Deaver's Lincoln Rhyme series, obviously; also "A Maiden's Grave", a Deaver that doesn't have LR in it but is still excellent.
Also, for something different; Jeff Lindsay "Darkly Dreaming Dexter" and "Dearly Devoted Dexter", for thrillers with a surprise point of view.

Finally, John Burdett's "Bangkok 8" and "Bangkok Tattoo", both very very good.