Also, you might want to check out the Logitech Z-340. Retail in the states for $39-$49. For the $$$ the sub will blow you away (and BTW, I Own a set of Altec 621's and ACS 295's, and love 'em....so not knocking Altec in the least).
http://www.newegg.com/app/ViewProduc...ry=1080&DEPA=1