Huh, what the heck - we're about 5 months out from our trip and on a whim I checked Cowfish's online reservations to see how far out they book. And every single mid-week day we're at Orlando, Cowfish is completely unavailable for dinner reservations. (11/8-11/12) I am completely taken aback!
I grabbed a 12pm lunch reservation on the one day there were times available (our last day in town) but man, I really wasn't expecting a 6 month booking to be necessary for a City Walk restaurant.
So, a heads up, I guess.

We'll still try our chances for walk-up, or maybe a last minute dinner res will open up, but this was my Plan A for our trip birthday dinner, so plan ahead if you're thinking Cowfish for a special occasion!