You want good but under $60? I'm not sure you'll find what you need for that price. I have this
one, but while it has 8 plugs, only 4 are actually on the battery backup portion. The other 4 are surge protected, but not backed up. The more you plug in, the more draw, which means more battery power, so if you want all 8 plugs on battery backup, you're looking at a more expensive solution.
APC has a configurator here
that will allow you to define what the computers are and how many you have so that you can get the best solution. Belkin has a configurator here
. They offer this
multi-computer model, but again, it only has battery-backup outlets, and seems to run ~$130 USD.
I couldn't find anything in your price range on the Cyberpower site that had more than 4 battery backup outlets either.