Easy Go - Kazuki Kato - Hitman Reborn Opening 6
Run!Run!Run! - Maki Otsuki - One Piece Ending 2
Departure! - Masatoshi Ono - Hunter X Hunter (2011) Opening 1,3, or 5 (same song, just slightly different lyrics)
I will edit this post when I get these songs or if there are any more that I remember that I want. Thanks!
P.S. Is there a backup location for all the songs that were on the ftp.stepmania site?