Alright, going to respond to both GeneD and LastLfan here.
First, @GeneD: LOL, I'd say the same thing about LOGH as KazeShiki, so I'd definitely still recommend it, just not for your 200th series.
As for that, since you want something shorter... *takes a look at shared anime*... hmm, let's see: There's the
From Up On Poppy Hill movie, the
Ocean Waves movie, the
Night On The Galactic Railroad movie, the
Tokyo Magnitude 8.0 series (11 ep.'s), the two
ef series (
Memories is the first,
Melodies is the second, and both are 12 ep.'s each), and the other two seasons of
Natsume you haven't seen yet (13 ep.'s each).
Oh, and also the
Seirei no Moribito and
Noein series, but they're 26 and 24 ep.'s respectively, so... whether that counts as short or not is up to you.
And second, @LastLfan: If you haven't watched it already (and as long as you can handle violence), it sounds like you're in desperate need of
Baccano! It's a fantastic series set in America in the 1930's (with a few flashbacks to the 1700's, as well). And if you don't mind something without action, I'd also recommend
Mushishi (and the OVA special, and the second season which is set to start this week, once you're done with season one
)-- it's set in a historical period in Japan, and it's basically about this guy who wanders around and helps (or at least tries to, as best he can) people with their problems with Mushi, a fictitious, partially supernatural (though still rather scientific at its core) form of life.