Congrats! Your wedding and reception will be wonderful, no doubt!
I recall in a past thread of yours that you were wondering how to gently relay the message of only Catholics receiving communion. I just wanted to suggest that you talk to the priest about giving polite instruction right before the procession begins. That is what our priest did- he welcomed everyone into the Church and said that our tradition in the Church is that only Catholics are to receive, but welcomed anyone to come and receive a blessing by crossing their arms over their chests. This kind of took the burden off of us and worked very well for the ceremony. Some people still stayed in their seats, but were not offended by the instruction (as far as I could tell).
Congratulations and may God bless you and your family to be!