I normally listen to much heavier black/death metal type stuff, so this is pretty mellow for me. Good song though.
Hopless by Eyes Of Fire
http://www.eyesoffire.us/mp3/hopeless_high.MP3

Most of their stuff is pretty mellow I think, but the only songs I have by them is what I downloaded off their site. Another band I like that's a little more mellow is Lacuna Coil.