There is also To the Beautiful You. A korean drama, it's a romance comedy that involves sports. :> I think it's cute... and having Choi Minho(Minho from SHINee) is also a bonus x3
try IS - otoko demo onna demo nai sei...its not exactly gender bender, but it does have the same feeling to it, and is done really really well, so ull deffinitelly enjoy it...
In The Great Queen SeonDeok the main character pretends to be a guy for the first half of the show in order to hide from assasins and join the military.
I have been watching two new dramas both are gender bender. The first one is Nail Shop Paris. The second one the girl dresses and acts like a boy and for the first 10 or so episodes the male lead believes shes a boy, its called Gu Family Book. Both of them are still ongoing but have been great so far.