I am looking at these two UPS's and am finding myself a tad bit confused. My purchasing options are limited, as I live on a little bitty island in the Caribbean. I've got a quote on a APC Smart UPS 1500 and I'm trying to get clarity on which version it is. The shipping costs are so high on a UPS I'd prefer to deal with a local vendor and it makes dealing with a refurbished unit not really worth it in my opinion. This is for use in my living room to power my Mac Pro and I've seen a lot of complaints about the SMT's loud fan, but also something about a firmware upgrade (quickly followed by a locked thread). I don't want any loud fans, although I do slightly prefer the SMT's aesthetic, even if they are both big ugly black bricks that are going to be hard to hide. Perhaps the older SUA is the better bet? The power is so flakey with all the rain lately I've been leaving my Mac Pro at work and plugged into our gigantic server UPS's there, where I know it is safe, until I sort a UPS out at home!