The voice of Heero Yuy in Gundam Wing has his own album out, which you can listen to and buy it on his official site:
www.mark-hildreth.com
I like it. It's reminiscent of Elton John, Billy Joel and Stevie Wonder (wonder how it would be if Mark covered "Vienna"). Imagine if Heero one day just decided to sing to Relena, and he sang one of the songs from this CD.