I thought the change in Tarja's style was cool on 'Century Child'. Especially on songs like ''Bless the Child'' and ''Slaying the Dreamer''. But I know a lot of fans were put off by that album. But it's always cool for a band to try new things. For some it works for others it doesn't. I am pretty fanatical about Nightwish though. The only thing I don't own is the box set and a few singles. I can't wait for their new DVD to come out next month. They are also going back in the studio soon, so that means a new album next year.
Oh yeah, check out this story. This just shows that Nightwish is band made up of cool people as well as talented musicians.
http://www.progpowerusa.com/thestory.php