Hah! How much time do you have for me to list them all??
I'll just point out this page to see those I wrote for:
http://www.kiyasama.com/fanfiction.htm
and for those not listed there, we've got Berserk (though it's more the manga I enjoy), Inu Yasha, Ranma 1/2, Gintama, FLCL, Ouran High School, Fruits Basket (the original not the new series), Free, Ergo Proxy, Gilgamesh....and a whole bunch of other short-lived series (or one shots), I can't quite remember off the top of my head.

I did try watching Bleach when it came out, but I was so hardcore Naruto fan back then, I couldn't get myself to watch anything else. Even freakin' Death Note that everyone rages about. And I was a big fan of Hikaru no Go (the same mangaka), but for whatever reason, could not get into DN.

Ah well, hopefully your short story writing skills are getting better. I think we've got some writing workshops around these here Writing.com you should be taking advantage of, if you haven't already.