You will have to decide what route you want to go. Just a few points to consider:
Surge protector: Delivers just that, protection from voltage spikes. Size it for the total connected load.
UPS: Uninterruptible Power Supply - Provides surge protection and also conditions the AC supply to protect from over and under voltage. Also provides a few minutes of backup power to give you time to shut down your equpment. Many come with software which will automatically save and close any open files and soft shutdown your computer. In your particular situation look for something in the 750 - 1000 VA range
Surge protector: Delivers just that, protection from voltage spikes. Size it for the total connected load.
UPS: Uninterruptible Power Supply - Provides surge protection and also conditions the AC supply to protect from over and under voltage. Also provides a few minutes of backup power to give you time to shut down your equpment. Many come with software which will automatically save and close any open files and soft shutdown your computer. In your particular situation look for something in the 750 - 1000 VA range