can anyone give me a good manga/anime with gender bender?

Can anyone help me give me a list of anime or manga with a gender bender as a main character? Prefer a male lead being a gender bender?? If their any?? I don't mind if it anime is a shounen-ai or shoujo, just as long as the main lead is a male gender bender??? like the "baraou no souretsu" with a strong male lead being a gender bender..

or any shoujo with a male leading character. :v

Here are some that are Gender bending and not crossdressing ones. If you read anyone and want to talking about it I can.
http://kissmanga.com/Manga/Kanojo-ni-Naru-Hi
http://kissmanga.com/Manga/Asuka-Hybrid
http://kissmanga.com/Manga/Boku-Girl
http://kissmanga.com/Manga/Balance-Policy
http://kissmanga.com/Manga/Buddy-Buddy-x-Body
http://kissmanga.com/Manga/Joshi-Shougakusei-Hajimemashita
http://kissmanga.com/Manga/Kyoukai-no-Nai-Sekai
http://kissmanga.com/Manga/Osananajimi-wa-Onnanoko-ni-Naare
http://kissmanga.com/Manga/Otome-no-Iroha
http://kissmanga.com/Manga/Sekainohate-de-Aimashou
http://kissmanga.com/Manga/Boku-no-Futatsu-no-TsubasaHope these help answer your question. These are all male turning in to female ones. Some have ended some are ongoing.