Dreamsmaybride - I think we've decided to go with one song for the groomsmen/bridemaids (walking separately, but we only have 2 on each side so one song should be plenty) then one for me. We want to keep things simple and I don't want to stress about the transition and whether the right songs are playing.
Re. Pastor Rick York, yes we modified his script significantly. We went with the less religious script, added in a different beginning (one I found on here actually) and changed some of the wording. He was really great about it, he didn't mind a bit about all our changes. I can't wait to meet him, he seems so nice!
Decor - for the centerpieces we're bringing little lanterns with tea lights, turquoise and purple flower petals and seashells for the tables. We're also bringing turquoise chair sashes that we've rented here in Calgary. We also did OOT bags, favours (starfish bottle openers and seashell wine stoppers) and colourful straw fans for the ceremony since it's on the beach. But that's about it!