@demonhead: There's also Chihayafuru which is about a very Japanese game called karuta. I'm sure it'll happen eventually. I mean, there's an anime about American style football, of all things.
I'd make an anime that blends my favorite parts of Shonen and Shoujo series. My very favorite series have all been ones that blend the distinction a bit, like Magic Knight Rayearth or Slayers. Most Shoujo series are too focused on the whole relationships aspect (friends, romance) making the pacing slow, and most Shonen series have so much focus on the action that the characterization is flat. Both get repetitive and boring or keep the tension at the same level the whole series, leaving me feeling burned out.
I'm writing a manga with some friends of mine that blend a lot of things, like Shonen and Shoujo anime stereotypes. If we make it really amazing and popular maybe it'll get an anime someday. That would be awesome!