Tessie a villa would be ideal for your family, the girls could have their own room with a TV and some also have DVD players in the bedrooms. As FM has done if you get one with a games room that is another thing to keep them occupied. In the evening you can chill out by the pool or watching TV with a glass of wine or beer!
Thoroughly enjoyed your reports, FM! It does sound like the ideal family holiday, with lots of time to relax and enjoy without feeling like you have to be on the go all the time.
I keep hoping Simon and I will go somewhere where we can rent a villa.