Just that basically.....
We're getting married May 2013 in a lovely venue with loads of outside space -about 50-60 guests including about 12-15 children aged 0-12.
15:00 Ceremony
15:30 Photo's and canapes
16:30 High tea style cold finger buffet
19:00 Speaches, cutting the cake and live band
19:30 Evening barbecue
00:00 Leave venue
Unfortunatly 2 of the caterers that work with the venue have returned quotes in excess of £4,000 and the other caterer who's just affordable (at a stretch) isn't flexable from their set menu's (high tea is interpreted as jam sandwiches and prawn cocktail) and won't do a bbq in the evening.
Both our families are very greedy food driven and will not have a nice time if there's not large quantities of the food they approve of available. They've already shown their disapproval that we're having a Friday wedding - attention seeking apparently 
Now our friends think we're mad but have offered their help whatever we decide. The venue are also willing to layout and clear away the buffet and canape's but not the barbecue, they also have all the table linen cutlery/crockery/glassware to hire.
We don't want anything special (no quails eggs stuffed with gold plated caviar) just standard sandwiches, scones, cakes folllowed by burgers, sausages, veggie skewers etc.
So what do people think? Has anyone done it or been to a self catered wedding (we haven't)?
All advice/warnings very welcome.