This should suffice.
<a href=http://monstercable.com/power/productPagePower.asp?pin=1901&LastPage=Home%20Theater%20Power>Monster HTS 1000 MKII</a>
Normally I wouldn't really recommend Monster, but we get it for $59, so it isn't a bad price.
A surge protector will keep surges out, like it says. A "power center" like Monster calls them, does other things as well. The main thing is power filtering, which filters out all the noise and crap in your power so you don't get hum in your speakers, and snow in your tv. Some models will even allow you to run video, phone, and audio lines through them to clean them up as well.
~Chuck