[ferretchucker]

Obviously I've never benn through a divorce and my parents are still married to each other, but my half brother and sister did (my dad and their mum before I was born). I asked them about it once and they said that, although they were upset, they're happy now because they know their parents are happy and, it may be different in your case, but their were no more arguments etc.

All I can say is that whatever age they are, they'll be upset and there's nothing you can do about that, but make it as smooth for them as you can. Make it clear they can still see their dad (unless they can't) and that things will be better once you all get through the other side.