I have just put in a large tractor tire pond with a small stream with small waterfalls going in to it; what plants should I put in my pond since it will have moving water?

I would like to have one or two small waterlilies, but from what I've read up on them, they don't care for moving water. I would like some marginals and floating plants, but don't know which ones would do best in my conditions.

Any suggestions?