How exciting for you keiramax. Johnro is the wedding sweets caterer guru, have a look towards the bottom of
this page for a display and then mention of what she did. I'm sure there is another photo somewhere too so will search for that as well.
Here it is and this is a description of what she usually does.
"To cater for the 140 guests I followed a similar format to the wedding last year with - (for the candy bar) - 8 batches of both cookies and cream fudge as well as choc fudge, 2 batches rara's cherry bites, 2 batches tim tam treats which I dipped in white choc. oreo pops, 2 batches of different types of rocky road. The desserts were - double lots of 3 types cheesecakes which were made in rectangular baking trays, macadamia, raspberry blondies X 2 and sour cream and apple slice x 2."