The new Fountasia 3000 pond pump from PondXpert has everything you might need in a pump. It has a lot of power and the extra oomph can be used to create a spectacular fountain displays. Pond hose up to 25mm in diameter can simply be plugged into the pump by utilising the universal hosetail (supplied).
This pump has enough power to be able to run a decent sized waterfall or a small fountain/waterfall at the same time.