I use itunes, $.99 US for a song, or 9.99 for an entire album. the only problem is that when you download them, the format they are in is protected AAC, which you can play on your computer, you just cant put it onto an mp3 player other than a kind of Ipod. Also, you could try using walmart music downloads, $.88 a song they have a pretty decent amount of music to, but you need to have WMP10 installed to use it i beleive... which you can download for free from microsoft.