Stream + ponds, Ideas needed

Hi,

Part of my stand have a "nice" slope that I want to use for a water feature / stream / pond area.
The height between the bottom and top part is about +-2.5m, I've got a length of about 20-25m.
A landscaping company suggested one big pond at the bottom (5m x 4m x 1m) with 4-5 smaller ponds from the top connected with 0.5m streams.
Any ideas or thing I should watch out for ?
Or even anyone that is willing to quote for such a job ? (based in Pretoria east)

Thanks,
Jaco

 

Wow the possibilities are endless

 

These guys did my father in laws pond was really impresed with them ,they no there stuff when it comes to filtration and propper design.
http://www.happykoi.co.za/

 

I will get you a guys number on Monday who does rehabilitation with sites like these with indigenous plants if that is more in the line of what you are looking for...