Ditto on the Belkin. Back when I ordered several 1100 VA units for home, the 12345 code was 50% and they also ran overnight shipping for the same price as standard shipping. I got a call from the Miami warehouse that afternoon confirming the order, was here next day (to NW Florida). Kudos to them! The code is only 40% off now but still a good discount. These units have seen more action than a soldier in Iraq! Hurricanes Ivan, Katrina and at least one other, in addition to the numerous thunder/lightning storms up here (Gulf Coast is one of the most active lightning zones in the US!) have all given these a good run for their money!
Do remember this though, applies to pretty much any UPS: the batteries won't last forever, I believe they suggest you replace the battery every 1 or two years for maximum effectiveness. There are many places that sell 3rd party generic batteries for a fraction of the original makers prices.