Does anyone know of any good decently priced UPSs for a system with a Corsair 620W PSU? I am looking for something that isn't over the top, but is able to keep me going long enough to power down a machine safely.
Go to the UPS vendor web sites and use the selector tools to choose the capacity you'll need to provide 5-10 minutes of power (plenty to shutdown safely). This will give you an idea of what you're looking for. Based on recent posts of various maker's internals, I'd say stick with a decent APC unit - if you find a sale, these are quite affordable.