The Girl Who Played With Fire by Stieg Larsson is AWESOME! I know some reviews say that FIRE isn’t quite as good as DRAGON, but I thought it was just as addicting. You learn a lot more about Lisbeth Salander in FIRE, and every bit of it has you rooting for her even more.
Do yourself a favor and pick up both of these novels and you will be just as hooked with anticipation as the rest of us for the 2010 release of The Girl Who Kicked the Hornets Nest.