G.,
I could have written your exact post (aside from the triplet part!). I have 2 boys (4 years and 17 months). My 17 month old has the exact same hair that you described (and a haircut is not an option for us either).
We've tried a few products, but they all weigh down his hair and give it a greasy look. You may find a product that works well, but what I have found is, brushing it "out" in the morning. You would think that this would be the last thing that you would want to do, but it somehow the brushing gives the curls what they need to "spring" back into shape.
I have bone straight hair, so I have no idea what to do with these curls, but I experimented one day with the brush (well, mostly I was seeing how big of an afro he could get):-) but it ended up being the best thing I could do.
Maybe you want to try that before you go out and get a product. If you do find something that works better, would you let me know?
Fellow mom of a beautiful curly headed boy,
B.