James Patterson (any of the "Women's Murder Club" books - 1st to Die, 2nd Chance, etc)
Emily Giffin (sp?) - Something Borrowed & Something Blue (I've read these two so far, she has a couple others out)
The Sisterhood of the Travelling Pants series - love the movie, LOVE the books!
I'm getting ready to go on a trip next week and will be taking some reading books along with work - perhaps I'll go pick up something at the library, if you've got some suggestions!