I will definitely have a pedicure and have my toenails painted, but I don't know what colour, yet.
French polish on toenails looks creepy to me, so that's out. I usually have deep red polish on my toenails but I'm not sure that will suit the dress/look. I usually dislike anything and everything pink, but in this instance a soft blush colour might be the way to go... subtle but pretty.
Then again, fire-engine red may get a run yet!