UPS for Linux?

[Matt G. Ellis]

Hello All,

I'm trying to buy a UPS for my linux server, a Pentium 100.  What I want is
something that will give the box (no monitor) about 5 to 10 mins of uptime
so it can shut itself down, I'd also like it if the UPS either came with
software to tell the linux system to shutdown, or if it had whatever cables
you would need to get a Open Source program to do the same thing.

I'm sorry If this doesn't make sense, I just want something that will turn
my system off if the power losses it, and I don't know what to look for.

Any ideas?