I've made my purchase. I read a lot of articles over the weekend
and spoke to several this morning. I liked the compatibility
with Apple OS, and ease of use (so they say).
I'm going with Cyberpower CST1400S, it's a 1400VA/900W (pure
sine wave) unit made by them for Costco.
Slightly scaled down from the CP1500PFCLCD model (1500VA/900w).
The 1400 uses the same software for the Power Panel as the 1500,
and works with Sienna OS. There was some savings using Costco
($180 vs $215 at B&H), and it's still a bit of overkill for
me at this time.
Thanks to everyone for their links and advice.
Maybe I can keep working longer/safer during monsoon!
Linda M. Feltner
of Natural Science Illustrators, President