utorrent and a torrent indexing site. I usually buy the album of artists I support, even though they don't make any money from the albums anyway (album companies rake up the profits, and artists are left in the cold).
I will never use a service like iTunes, since I find the concept of paying $1.00 for a flawed, lossy, compressed copy of a song ridiculous. For the same equivalent price, I can buy a full album from Amazon or half.com (which have the original, loseless version of the songs).
Plus, when I buy the album, I can do what I want with my music, exactly the way it should. The concept of paying $.99 for someone else to tell me what to do with my flawed copy of a song is just downright ludicrous!
sorry, had to vent...
But for individual songs, Ares seems to work OK. I don't keep it installed though, I quit using P2P programs a long time ago for the most part

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