Swanny, I don't see why a 10 acre pond can't give you everything you're looking for and more. Also, it's just a hunch, but I think that if you go with smaller ponds, you will regret not going as big as possible. The only problem with size, is that you'll need to find a perfect piece of property if building new. Terrain and watershed are critical, you'll definately need topo maps and probably legal advice. Be prepared to spend sizeable $$$. Search the board...we have discussed costs in other posts.