I would recommend trying to get the best wave and power conditioning unit you can.
I just blew 300 dollars because the APC unit killed my PSU and so now i bought a new psu, found out it was the APC/UPS that killed it somehow or something.
So, the one im getting from Cyberpower is the "pure sine wave" one. It seems pretty fancy.
I do really hope it is fanless. I didnt think about that. I havent had a fanned unit (aside from when it is on for a while during extended usage). It hear it that has some 98%+ power efficiency or some claim so im guessing it would run fanless. shrug?
And yeah, I do enjoy playing games without stopping when the power goes out. I normally can still do my work or a game for a while (20minutes or so) without much worry. It is a luxary in a way, in another way, most of the UPS's come with fancier features if you get the bigger battery version. I think Cyberpower begins its fancier features at the 1000 line. it has increments between 1000 and 1500 but they arent commonly bought by resellers it seems. The 1500 is lighter than my current one by 10 lbs and the 1500 is only 15 dollars more than than the 1000. shrug. It has an LCD. Cant wait to check it out