Primal Fear is an extremely underrated Power Metal band -- Killer vocals, great guitar work, and really strong song writing. Their earlier work is VERY heavily influenced by Judas Priest (the singer actually lost out to Ripper Owens when Judas Priest was looking for a replacement for Rob Halford), but their style does evolve with each album.
Below on my three favorite songs off their first album (self-titled).
Silver & Gold
Tears of Rage