I live an hour away and find Milan a bit like London in that it's very expensive and you get completely lost if you drive about! Are you coming from the UK? I know there are Bilingual schools in Monza at least (just outside Milan) but you pay the price. Other than that it would depend where exactly you go as to what the local school would be. In an OFSTED report recently (survey of all countries in developed world) Italy came out well for schooling so I would say your children could do well here. My top tip for living in Milan is to not trust the road signs, they are RUBBISH!!! Good luck!