Surge protection is useful, but you do need to cover all the possible avenues for it to affect your machine to be anywhere near safe.
In an ideal world, you'd run your machine, displays, accessories, and router on one protected strip which you replace regularly (as MOVs degrade every time they stop a surge). You would also have another MOV to protect the phone line and prevent surges coming down the phone cables into the router and killing your machine that way.
Intel i7-2600k with an XSPC Raystorm water block, 4x4GB Corsair Dominator, SLi Evga-GTX560Ti-448 FTWs, Asrock Extreme4 Gen3, Crucial M4 256GB SSD, Samsung Spinpoint F3 1TB HDD, powered by a Silverstone Strider+ 850 PSU in a Silverstone TJ-07BW case.
I'm not buying EK GPU blocks ever again. (One GPU killed)