Stewart: I'll have a look at the page as soon as I've ett!
I too settle for odd keys wit F# & C# being two of my mafourites. Drives my wife nuts.
PoppaGator: I'm plenty loud but I start off, nice and easy, in the morning and work my way up.
I wouldn't advise falsetto because I think it hurts your natural voice but I hear a lot of young female vocalists switch back and forth and it sounds quite nice.
Danny Boy has one solitary, high note that makes it difficult to use as an exercise.
"Northwest Passage"... Yes. I think I'll try that. Has lots of range, flows well and is best unaccompanied. Good suggestion.
Jim hungry now. Must eat.