speakers selction

hello, hmm will these speakers work with any comp. do u need to have that sound card? the ones that creative sells to plug these in.

 http://www.newegg.com/Product/Product.aspx?Item=N82E16836116153

http://www.newegg.com/Product/Product.aspx?Item=N82E16836116179

most likely to get the second ones to match my screen , thx the main thing iam asking do u need a sound card to plug them in?

sorry to invade this guys post but i have the same question, would these be good for a basic comp. http://www.newegg.com/Product/Product.asp?item=N82E16836121123Toad2009

sorry to invade this guys post but i have the same question, would these be good for a basic comp. http://www.newegg.com/Product/Product.asp?item=N82E16836121123Toad2009