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Subject: Re: Another regex problem
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> In other words I'd like to make them uniformly lower
> case but I can't figure out how to accomplish this in
> the replacement string.

(setq case-fold-search t
      case-replace nil)

Specify both the search text and replacement in lower case.
With case-fold-search t it will find upper and camel case
occurances.  case-replace nil causes the replacement to be
used literally.