Just to preface this: I'm a librarian and I read a lot! Lately it has been a book every day or so and I'm usually reading more than one book at the same time.
I just read the new Christopher Moore book; A Dirty Job. It was sooo funny. Moore is the reigning king of satire, IMHO. Moore has characters that pop up in each of his novels. I like seeing recurring characters in different cicrumstances. It's not a series, but his own little world. Humor, a little bit of fantasy, and a lot of well-developed characters.
I also recently read A Small Death in Lisbon by Robert Wilson. It is not new, but recently had a jump in popularity at a local book seller. It is a really good, very smart mystery. If you like mysteries, you have to read this! I think it won a Golden Dagger award awhile back. It is a page turner and really well done.
I read Heat, too! I really liked it.
Currently, I'm readying Elements of Style by Wendy Wasserstein. No, it is not the style and mechanics book of the same title (although I highly recommend the illustrated version of that one!). This is about modern New York society in a post 9/11 world and is about old money, new money, the glamour and the desperate to be all of the above. I can't decide if I like it yet...
I'm also working on Heavy Words Lightly Thrown (the author escapes me right now.) It traces the (rather dark and disturbing) origins of nursery rhymes and fairy tales. Very enlightening and fun to read.