How do you interpret the specifications of a speaker system?
I'm looking for a new set of 2.1 computer speakers (for < $100), and don't really know how to buy speakers. The only things I really ever looked at before are power and audio sensitivity, which are measured in Watts and dB respectively. But then again, I'm not sure how accurately they measure the quality of speakers.
For example, these (http://www.amazon.com/Eagle-Tech--AR504LR-BK-Soundstage-Subwoofer/dp/B0029Z9UNW/ref=sr_1_20?s=pc&ie=UTF8&qid=1308429877&sr=1-20) have RMS 35W of power. But these (http://www.amazon.com/Sony-SS-B1000-8-Inch-Bookshelf-Speakers/dp/B000OG88KY/ref=sr_1_22?s=aht&ie=UTF8&qid=1308430101&sr=1-22) are cheaper with ~60W RMS Power. What makes one better than the other?
I also would factor brand names (say, Polk over Coby), and also reviews... but are there other ways to read speaker specs?