Rudey,
What alphagam-alum said. Plus, my family is flying up for the occasion, so we'll probably go to a really nice restaurant for a late lunch/early dinner so I need something appropriate to wear there.
P-n-C: I saw that dress at Nordstrom.com - it's gorgeous, but I'm not wild about the halter thing. I saw a Ralph Lauren dress that was very similar to that at the mall today, but instead of a halter top, it had spaghetti straps. Unfortunately it wasn't available in my size.
I also wasn't sure whether it was too dressy for an afternoon ceremony. God, I hate not knowing anything about clothes!
It looks like I'll be driving to Seattle to do some shopping!