Can Nicole Kidman Do Dusty Springfield Proud?

I was initially stoked upon reading that Michael Cunningham (of "The Hours" fame) is penning a biopic delving into the life of one of my favorite blond British songbirds (and no, not Madonna; she is only "pseudo-British"). The woman in question: Dusty Springfield.

However, when I found out he has Nicole Kidman in mind for the lead, I must admit, I am a bit skeptical. While this may be due in large part to me being in the minority who was majorly underwhelmed with her performance in "Moulin Rouge", also, I feel she lacks the "oomph" and pipes for a part this meaty (i.e. she is no Sissy Spacek in "Coal Miner's Daughter").

My ideal shortlist for this role would include:
Zooey Deschanel (we all know I love her singing),
Gwyneth Paltrow (she delivered an inspired singing performance in one of my favorite cult classics, "Duets")
Mandy Moore (have you heard her new album.. the girl can sing!)
Emily Blunt (she does have the British accent down pat & can take crooning lessons from beau Michael Buble)
Scarlett Johanssen (she just finished an album of Tom Waits covers, which admittedly I haven't listened to yet)

What about you, who do you think is the ideal star to belt out "Son Of A Preacher Man" like nobody's business? Jog your memory on Dusty's amazing pipes with this video and this one and then weigh in:)