4 Walmart Deep Cycle Batteries (I added a battery since this pic was taken)
2 75 watt Kyocera Panels
A Xantrax C40 charge control
And a Xantrex 1500 watt inverter
Runs most anything I need in an emergency, and is really handy for my garage door as well when the power is out.
I also have a second smaller system that has 2 50 watt panels and 2 deep cycles with a 1000 watt inverter, that would probably do exactly what you want and you could scale it up when you nee more later.
here is a pic of my backup power setup (which has been tested many a time and used for ham radio emergencies as well) in my garage
I paid less than $100/battery, and they have been in service for > 5 years.
I use an engine hoist to move them.
/johnny