e-party invites

ok so im trying to start the wording for my e-party invitations, but im not sure how to do the wording--

do i do something like

Please help celebrate the engagement of....

Please join us to celebrate the engagement of...

im lost!

i know there have been a few threads on this, but none of them addressed all of the wording (that i could find)

http://www.theweddingshop.com.au/welcome/page86.php#bg

check that out. may help with the wording