I have peeked in the window at the fitness center at the Boardwalk inn and it looked very nice and well-equipped. I would imagine the YC/BC is similar.
And by the way...you totally rock...love my fellow fitness buffs!!

Good for you for trying to stick with your workout plans while at WDW. I have tried, but usually not succeeded...walking around the parks seems to be the best so far. unless I'm there for an event.