Myy dd 12 (soon to be 13) wants an iPod or MP3 player for her bday, Which is best and the easiest?? DO you need subscriptions to download music?? I am looking a t a very inexpensive ($40) mp3 at Walmart as a starter for her (don't want to spend too much as she is also probably getting a cell phone as well from us for her bday). I am just sick of buying her cd's that she listens to for a month then off they go to sit and get dusty..With as fast as music changes, I figured it would be easier for her to just add and erase songs as her interests change.. ANy thoughts???