Well 2 to be exact.
It will need to do the following,
The first one will need to last as long as possible on battery incase of long outages
The components needing to be on it.
1 Cable Modem
1 Router & Telephone.
The second one is preferred to be on as long as possible since it has a lot of draw
1 32" LCD TV
1 17" Mag Innovision Monitor
1 Computer with 1000watt PSU
The second one just needs to last atleast long enough for me save my files and shutdown the computer. But the first one needs to be able to run as long as possible since it will be keeping my telephone line active since I have VOIP and we may need to use the phone for emergencies when we don't have power.
I have never used a UPS before but I want to start, so Some of the things, er well all the things about them I dont know.