UPS for individual SUN Servers?

[leon howorth]

Can anyone recommend compact, self-contained, and relatively inexpensive
Uninterruptible Power Systems (UPS) for use with one (or possibly two in
close proximity) SUN 3/260 or SUN 4/260 Server systems. I assume it would
have to be in the approximately 1000 to 1500 VA range capacity. I'm not as
concerned with the amount of time the systems would be operating from
battery power as I am with reliability, protection, and uninterrupted
switchover to the backup power source.