We're going for our one year anniversary in October. We vacationed in WDW (just a Disney family!). I would recommend getting the pins and wearing them around, you'll get lots of comments and stuff from CMs. We are staying at the Marriott with a Disney view lanai room. Dinner at Napa Rose (Hopefully chefs table!). Probably going to do the Halloween tour, or Walk in Walt's Footsteps.
I would recommend maybe getting a good spot for fireworks, those are always romantic, eating at Blue Bayou is good, or Catal or Jazz Kitchen in downtown. Maybe getting your silhouettes done at the shop on main street would be a cool memento. We have some from our first trip to DL together oh so long ago.
I think being at DL is romantic enough, I hope you enjoy!!