try accor hotels
that will cover the ibis, novotel and other chains.
what sort of budget and how many kds you talkign about.. coudl be worth looking at an apartment hotel type plae. some good prices and it means you can do your own breakfast etc and save money over whta you' get stung in a hotel..
edit-- saw 2 kids...
allows you to enter room type wanted as 2 adults / 2 kids..