I got to Barnes and Noble briefly last night, and was able to use one of the gift cards I received last Christmas - I picked up "Final Impact" by John Birmingham". It's the third in his alternate history yarn about a future (2021) task force that gets sent back in time to 1942 - which creates havoc with the timeline, as all the despots of the era learn where their policies are taking them. It's a fun read, and certainly lighter than what I have been reading :)

If you like Turtledove and Clancy, you'll like this series - it's like a cross between the two, and in very much the same style.

Update: Well, I just finished the book. I have to say, the ending felt "phoned in". I liked this series, but the final book seemed rushed. Makes me wonder whether he's planning - like Turtledove, with his civil war to WWI series - to just keep going with the timeline.