CompUSA (yeah, I know) has these for $299 right now. Oddly, they have the BP1000 for $369.99, which seems odd, since the BP1100 has the same wattage rating, and actually has the Powerchute ...

APC's 1500VA UPS Battery Backup features ten surge-protected outlets, five of which are backed by the replaceable 900W battery when power goes out. You get Automatic Voltage Regulation to keep ...