I should really put all the credit to how good/well balanced they are to my dearly departed wife - if I'm honest for much of their upbringing she did what I couldn't, but we always took time to reconnect during holidays/break etc and I always happily made the effort for weekends and after school activities - although at the time, I felt like no more than a glorified taxi for them both and their friends.
The hard one was taking the eldest to swim training and swim meets all other the country starting at god awful hours in the morning - that said I was always amazed at how enthusiastic she was at 5.a.m!
But as you say, nothing I wouldn't do for them, if I believed it was the right thing to do, that said both myself and my wife always believed that we had to teach them to stand on their own two feet and not shirk from the tough things in life and even in death my wife was laughing with them a few hours before - even though she knew it was very close.
Just before she died, she spoke to both of them on her own (and I only learned this at her funeral) she told both of them to live life to full and 'don't listen to your dad, he's too conservative!' - I could have killed her! These were the last words she spoke.
So even in death, she showed them how to face it with bravery and grace. I remain incredibly proud of how she choose to go and the lasting impression it made on our children.