self-parking is free, valet is $7; they may validate for you if you're having a party there, but you'd have to ask
be aware, they are very tight with people parking at the Contemporary, b/c a lot of people park there and walk to the Magic Kingdom. Your guests may need to tell the guard "I'm with the so-and-so party" to be admitted.
Congrats on your pending nuptuals!
Oooo...that's the best place for that. My first wedding (at the pavillion), we had the reception at California Grill in one of the rooms right next to the catwalk....best wedding reception I've ever been to...too bad it was the highlight of my marriage. HAHAHAHA. Best wishes and good luck!