This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
I've purchased all the Head First books and find every one of them invaluable - took the SCJP exam for 1.4.
However, to update myself with Java 5 knowledge, I would prefer not to have to buy the entire second edition of HFJ. Do the authors plan to come out with a mini upgrade-guide by any chance? That way I could afford to buy the next new HF book