Please be patient with me. I just purchased a Dell xps 9100 with the stock thx trustudio pc sound card. I want to hook up speakers. I would like to use the 5.1 home theater with the four satellite, one center and one sub woofer without an amplifier. This is where I am confused. Can I hook up this kind of speaker set directly to the computer or do I need an amplifier to? Is this where the powered speakers come into play as opposed to the un-powered speakers? If so, how do I determine which powered speakers will work with my computer? How do I determine how much power (I assume that is the watts) do I need? Is there a minimum - maximum range that fits my computer? I know I am pathetic but at least give me credit for knowing I am lost and seeking help. I hope someone can and will take the time to educate me. Some of the speakers I have been reading about include the Boston acoustics soundware xs 5.1 home theater, logitech z906, logitech z5500, Polk audio rm510, klipsch pro media 5.1 No real reason for any of these other than they looked good and the reviews were good. Guess by now I have proved to all that I am lost. Thanks to all that have taken the time to read this and hopefully give me some guidance. I really do appreciate the help.