We'll do some digging here at Nappyvalley but ideas off the top of our head:
1) Mark Warner - their website has some great last minute deals
http://www.markwarner.co.uk/special-off ... eContainer
We went last year and got four of us half board in a lovely apartment for about 4k. Expensive as a toal figure but when you think that included meals and wine and activities and kids club then it wasn't too bad.
2) Sunsail
http://www.sunsail.co.uk
Bit more jolly hockeysticks but good for the active sailor
3) La Manga
We've heard great things about their sports clubs for kids.
http://www.lamangaspain.com/family-holiday-in-spain.htm
4) Travel Matters are a travel agency based on Nightingale Lane who really know their stuff. Their knowledge of France is excellent.
http://www.travelmatters.co.uk/
We'll do some more digging but please let us know if thats of any use...
Cheers
NappyValleyNet Team