I had the same problem when I was doing the wording on my invitations. Since my parents are paying for everything, I am only putting their names on the invitations. On the invitation, it reads:

Their lives have been blessed
by their love for each other
and by their faith in the lord.
Mr. and Mrs. Parents Last Name
request the pleasure of your company
at the marriage of their daughter
Brides First and Middle Name
to
Grooms Full Name
On Saturday, the Seventh of June
Two Thousand and Eight
at 3 o'clock in the afternoon
at (name of ceremony site)
address of ceremony site
City, State of Ceremony site

Hope this will help you in wording your invitations. Good luck.