If you turn the option on the AutoFormat As You Type options, you can simply
do a replace of " by " (same double quote character) and the smart quotes
will be applied.
(I use this method with some additional style conditions to create smart
quotes in text and straight quotes in computer code examples.)

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Margaret Aldis - Microsoft Word MVP
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> How can I replace my straight quote marks ('') with smart
> quote marks? (") This option is available in Word 2002
[quoted text clipped - 11 lines]
> terms, since this is my first time dealing with these
> issues. Thanks for listening to this question.
Suzanne S. Barnhill - 01 Feb 2005 14:31 GMT
In addition, you *can* clear all the other check boxes in the AutoFormat
dialog and then run AutoFormat. I find this approach also works well. I keep
AutoFormat set up a little differently from AutoFormat As You Type just for
this purpose.

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Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
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> If you turn the option on the AutoFormat As You Type options, you can simply
> do a replace of " by " (same double quote character) and the smart quotes
[quoted text clipped - 18 lines]
> > terms, since this is my first time dealing with these
> > issues. Thanks for listening to this question.