Speaker wire to componant plug

unless they are very small your pc wont have enough power to drive them. you will need an amp of sorts.
something like this
http://www.mcmelectronics.com/product/50-10145&scode=GS...

The audio out jack is a stereo jack, 3 conductors. a left wire, a right wire and a common ground wire. the ground is common to both channels and is usually connected to the barrel of the stereo jack. attach the other wire from 1 speaker to the ring, and the other speaker wire to the tip of the jack. As far as the power goes, farrengottu is correct.

Thanks for the information. It is exactly what I needed. Do I just get a stereo jack cable and strip the ends and put the bare copper into the wire clamps on the back of my bookshelf Infinity Infinitesimal Micro speakers? http://images.craigslist.org/5W65X65S43k03p63lebb1f38e4...

That would work, except that most of those cables only have 3 wires. You need two to each speaker.