Yeah...I'm also a big fan of high-pitched vocals...unfortunately, I seem to be cursed with a moderately low vocal range (Although it's not TOO bad, I can't hit the high notes I want to [Examples of vocalists that I WANT a style similar to: Michael Kiske, Geoff Tate, Bruce Dickinson, Matt Barlow, Tim "Ripper" Owens, Harry Conklin {Jag Panzer}]). To give a good example of what I've found my vocal range to be, I can hit every note that Falconer's vocalist can (Or at least does on their self-titled album).
The question is...would it be possible for me to develop a "head voice" to sing high-pitched, like the aforementioned vocalists? Or would I have to resort to falsetto? (And then, chances are I'd end up sounding like King Diamond...I really dig his vocals, but that's not the sound I'm going for.)