[fader8]

To the OP,
First, it would really help to know what country you are in.

Depending on what type of overvoltage protection your power strips use, eg carbon block, gas tube, etc, if you experienced an overvoltage that shut everything down, then that protection could easily have been destroyed/compromised in the event. So I wouldn't trust them to protect your gear again until you've had them tested.

As to what can or can't survive is a crap shoot at best. Smaller devices with switching power supplies could care less about input voltage, while conventional supplies are more at risk. I once worked a show where the idiot electrician had reconnected stage power (after some wack audience members had yanked it out in some bizarre tug of war) so all the 120 lines were hot with 220. All the PA's Crown amps cruised along fine, but their BGW's all popped and went south.

You may want to look into some of the excellent UPS's that are available that output a sine wave. These are honestly your very best bet as to conditioning and regulating the power. You don't have to put everything on them, just the really critical stuff.

Good luck!