Tony,
I have 3200 watts of solar panels with an Outback 2548 Inverter and a X-240 transformer that has my 240V 1HP pool pump as its major load. In the hot summer months the output of my panels will drop as low as 2400 watts, and my pool pump generally consumes around 1400 watts while running.
A DC pump run directly from the panels (with some sort of current booster) would be far more efficient, but I have never been brave enough to risk the high expense of the DC pump and then not have it work for me.
The store here at one time sold a package deal with panels, pump, and controller, but it is no longer available even though one user gave it a good review.
http://store.altenergystore.com/Solar-Pool-Heaters-and-Pumps/Solar-Pool-Pumps/Solar-Pool-Pumping-Packaged-System/p5796/The pump and controller is still available.
http://store.altenergystore.com/Solar-Pool-Heaters-and-Pumps/Solar-Pool-Pumps/Lorentz-Solar-Pool-Pump-with-PS600-Controller/p5827/I'm still considering it as it would be fairly easy for me to divert the output of one string of panels directly to the pump/controller, but I will have to see a lot more positive reviews before I take the risk of purchasing the pump and controller.
John