Here in the Surrey Hills South of Farnham we have had 6 power cuts in the last 5 months.
My trusty APC 700 has worked well and it has run continuously for 2 years so far.
I only have an iMac 27" 2010 w/ printer and backup HD and it has saved hours of fiddling about.
Got the usual surge protectors and APC should serve you well CharlieOneSix.