Discussions

i love to run but the time has come that i need some tunes for motivation....so, i've started investigating the ipod / MP3 options, and would really appreciate some guidance. At this point I'm going back and forth between the ipod Shuffle and ipod Nano.....any opinions on either?? Please keep in mind that I'm really only looking for something to provide workout music....the more simple the better.  
 
Also, this might sound really dumb, but where can I download music from? Do I have to pay for every song from iTunes? or is there a free site that I can use?  
 
I'm looking for any kind of feedback, thank you in advance!