Sarah-Jane at http://www.ladyjaneevents.co.uk does low cost weddings in Southern Italy. (sorry if I joined the forum too late though to help!)

my friend got married in uk, then held her reception in Italy, an area called bognanco, cant remeber hotel name, something elda i think, but i know it was good value, and they hired the whole hotel for their 40 guests attended and hotel sorted out all flights and coach transfers for us in with the price she paid... i dont know the price, but i know it was much less than uk.
the area was great, peaceful and relaxing (until we came along anyway!)