>>So if two 17's could be 200 w and the power supply in the computer might be 200 w,,,,thats 400 watts so a 500 va should more than handle it ....wacha think,,,,?|
First, it depends on the wattage, not VA, which are potentially (yes, pun is intended <g>) different when impedences other than pure resistance are in the circuit and made worse when the power source is not a pure sine wave, which is true of all but the most high-end UPSs. Second, your 200-watt power supply refers to its OUTPUT not its input. You have to check the rating on the power supply itself to see what it would draw.
A 500 WATT ups would probably handle 2 17" monitors plus a worstation, though I wouldn't expect more than a couple of minutes.
Sean Smith used to speak highly of OPTI-UPS, especially for price-performance. Buy.com has a 500 watt (yes, watts, also 500VA - dunno how they manage that since it's not true sine-wave output) for 89.95 (roughly), with LAN/Phone protection. 500VS, I think it is.
HOWEVER, I ordered one and it was DOA. That's off-putting but can happen to anybody, of course (I've also had a couple of APC UPSs fail in service - dern batteries don't last). I've ordered a replacement for the OPTI, but I can't comment on the OPTIs personally yet.