I literally got a transfer to a more exciting position and most likely a raise (discussing it on Tuesday =P) just because I communicated things related to the new position proactively and more than other people who, after the fact, expressed interest in the position.

Nice, congrats! A former boss once told me that over communication never hurt anyone. Of course there are ways to fine-tune and get the point across more succinctly but I think the point still stands - err on the side of over than under communication.