"Now we've got: Enya, Celine Dion, Sarah Maclahlan, Whitney Houston, Shania Twain, Mariah Carey, etc. They all use their real voices."

Nah! I don't believe any of these gals could make it in the days prior to reverb, delay, vocal harmonizers and gangbusters editing. Gotta' agree with Terry, Streisand has a voice that does not require lots of electronics to make her sound good. She has the pipes that other singers dream about, and I'm confident that she is one of those singers that can capture an audience even if she didn't have a mic in her hand.

Just my two cents worth,

Gary