The 'which school' issue does seem to vanish as soon as you move cities and even more when you move countries.

Y's teacher had a chat to us yesterday. She's of the opinion that picking the right primary school is more important than the high school. Her reasoning is that if they get a solid grounding at primary they can succeed in any high school. I never thought of it that way before but it makes a lot of sense.

I'm kind of torn on the whole single gender V co-ed thing. On one hand boys do better in humanities and girls do better in maths/science when they are segregated but on the other hand it seems so artificial. It's not like work-places and unis are segregated and the girls at my girl's school were so dopey/clueless when it came to guys.
The high school I have in mind of we stay here is co-ed so if they can get in that's the way we'll go but if we move..... who knows.