Pond Frog, I did get to that water garden place you mentioned and the lilies were all hardy species, no tropicals, I can see why you grow your own the cheapest ones were 19 bucks.
Needless to say I decided that I didn't want to put out that kind of money right now so I will stick to putting different plants on my floating islands.
Thanks for the info, I would like to try some in the future.