Need your recommendation for a UPS

OK. I need a UPS and have read some of the background material here and at wikipedia. And have searched some sites like epinions and consumer reports but I really only trust advice on these kinds of topics from folks here and at AnandTech.
So, I need a UPS but not for my computer!! I need a UPS to power my sump pump in the event that torrential rains threaten to flood my basement and the power goes out (which does not happen often in my area in general but is more likely if we are in a storm that is strong enough to cause the kind of flooding that I mentioned).
Therefore, I am asking for your real world experience with various models of UPS's.

What should I buy? I don't think that I absolutely need surge protection as the sump pump almost never runs (only when there has been a lot of rain), but am not opposed to getting surge suppression. However, it is critical for the pump to be able to run until the Power Company gets around to restoring power (otherwise my basement is in jeopardy). I realize that this is a terrible spec as nobody has any idea how long the Power Company will take. So, does anybody out there live in a house with a basement? If so, what do you use?

My electrician has recommended a unit from MGE UPS systems called a ellipse 1200 USBS. Has anybody used one of these? I am concerned that my electrician has not really had any experience in this area.

How much current does the pump draw?

I agree. Power your sump pump with a backup generator. A UPS big enough to last any length of time with a motor for a load will be huge, heavy, and expensive.
You could consider getting a big deep-cycle AGM battery (not a "car battery," which is quickly killed by deep-cycling) and powering an inverter, but again the inverter needs to be able to handle the tremendous current needed to start the sump pump.