Being a huge fan of 'boys' books, i am re-reading the CHERUB series by Robert Muchamore, and am on book 5, three days into my (not really) epic quest. Absolutely love them, and i really recommend to anyone who loves a good action/teen spy story (they make Alex Rider seem pretty rubbish).
Also just read THE SECRET COUNTESS by Eva Ibbotson. Fantastic read, i love the historical setting and the characters are brilliant, particularly the villain, Muriel (although the FMC is a total Mary Sue).
Next I plan to re-read the YOUNG BOND series by Charlie Higson, including the 5th one which i haven't read yet. Again, all really good (i wouldn't be re-reading them otherwise).