I recently bought James Patterson's The Womens Murder Club series (6 of them in all) after several people told me that is was awesome. I have to agree, I am on series 4 and i have read them in about a month and a half! If you are looking for a great read that will keep you in to the book all the way through, this is IT. I bought the whole series here on ebay for only $25 and that is with shipping.
You will not be disappointed!