TV Sheros:
* Nikita from La femme Nikita (Peta Wilson), Canadian show version, not the French movie
* Kara / Starbuck from Battlestar Galactica
* Aeryn Sun from Farscape
* J. Garner from Alias, season 1-2 only (don't watch it anymore)
* Yamiguchi from Gokusen (anime version, not live-action)

There is also Scully, of course, and the girls from Firefly (great show, sorry to see it go). And the main character from Witchblade - that was a great show I was sad to see go, too.

Movies with great sheros:
* Chocolat
* Spirited Away (anything produced by Haoyo Miyazaki, actually)
* Iron-Jawed Angels
* Run, Lola Run