I know Seventh Avenue is on Nolife Til Metal and Metal Metropolis, but are there any other fans? Good quality power metal that brings to mind Helloween and Gamma Ray. I think as far as Christian power metal goes, these guys are at the top of the ladder. I have the Goodbye EP, Between The Worlds, and Eternals. Great melody, awesome (and IMO, unique) vocals, and the occasional ballad. They also do an great power metal version of Survivor's Burning Heart.
http://www.myspace.com/seventhavenue12345