hi noknok. recessional is typically an instrumental piece to play as you walk out of church with your husband..As for whether or not if both not catholic or not can have mass, best to check with the priest celebrating your wedding.
I'm sourcing for my recessional music with my hubby since he is quite picky about what to use =P
forever 81, florists u can try red petals or blissfultots (Mia). As for choir, check with your church which choirs are the "wedding choirs" and how much they charge. Alternatively, you can find Phillip Lye who will play the music and sing at your wedding. If you want him to do the psalm and gosepl acclaimation, he can do it for u also...
EE best to attend as early as u can because u will need to pass the cert to the priest when u go for ur pre-nup appt.
booklet samples, I'll email u in a bit