Awwww...I'm loving that last one! I know you don't use flash at all during the ceremony, what iso are you using on your 5D? I'm still stuck with 20D's (planning to upgrade asap) and I'm not loving the grain at 1600 especially if I have to underexpose a bit. I love the bouquet too. So pretty!
I use the 30D sometimes, always at ISO 1600 for just about everything. The noise really isn't too bad unless you cut way into the photo.