Ah you read charming junkie too? haha... Susie and I have been following it for a while...but the Tokyopop seems to stop publishing the rest T3T;; And when i watched Kimi ni Todoke, I thought of Naka or Sunako!

Does Ranma count??? Its literally gender bending? XD;;
Day of Revolution: not sure this count. Guy gets sex change as a girl.