Newegg offers the Klipsch Quintet 5-Channel Home Theater Speaker System for $159.99 plus $1.99 for shipping. That's the lowest total price we could find by $47 and the second best price we've seen. (We saw them at this price with free shipping a month ago.) It includes four satellite speakers and a center-channel speaker; these handle 50 watts and 75 watts of power RMS, respectively. (Note that a subwoofer is not included.)
Newegg offers the Klipsch Synergy 12" 440-watt Powered Subwoofer, model no. KSW-12, for $249.99 with free shipping. That's $150 off and the lowest total price we could find for this discontinued subwoofer. It features a 12" down-firing driver, variable crossover, two line level/LFE inputs, switchable phase, and a dynamic power rating of 440 watts.