My choice of UPS is this -- CyberPower CP900EPFCLCD or APC Smart-UPS 750VA (SMT750I). I intend to connect UPS with USB for data transfer, not Ethernet.
According to UPS HowTo http://tldp.org/HOWTO/html_single/UPS-HOWTO/, the first one is adviced to run with NUT, and the second with Apcupsd.
Are those package equally good? Another issue -- support. When I run into problems, and I would look for some help, with which package (and community related to it) I will solve my problems faster?
In short, which package you think will cause less problems with configuring and using (with UPS)? I am asking this, because those UPSs looks almost the same for me (*), the only thing I don't know now is how good are they when working with Linux.
If you are a user of one of those UPS+packages, please simply answer with your experience "I had no problems at all" or "I had to install Windows to make it work properly". You don't have to know both of them to answer.
(*) The first one is cheaper (price for device, and less energy consumed), the other provides longer power support. For me it is a draw at this point.