What you need to do is look at the specs on the strip. Especially clamping time (the amount of time it takes to shut of surges) and power level (how much of a surge it can take before it blows up). You should try to get a strip with a clamping time of 1 ns (nanosecond) or less - means it takes a billionth of a second to shut off. Then look for the one that has the highest power rating after that and make your decision based on price.
I recently bought a Tripplite surge protector on a friend's advice (who did his hard research). Buy.com sells them for more than 50% off, and you can get free shipping (the DVDs are cheap too!). This is one model, there are over 15.