Mass Search and Replace?

[Downsider]

http://www.digitalvolcano.co.uk/content/textcrawler

Free one.

EDIT:
There two also showed up in the comments on that giveaway site:

http://www.inforapid.com/html/searchreplace.htm

http://sw.ixoft.com/texfinderx/

Both free.

[Mexicouger]

I use Textpad. It has really goo find/replace functions. You can scour a folder for functions, and replace things in them.

[Baker]

I use Textpad. It has really goo find/replace functions. You can scour a folder for functions, and replace things in them.

Like Mexicouger said, TextPad has incredible singular search and replace even doing Regex.

[But I started the thread not needing singular search and replace, but the ability to do several search and replaces in one fell swoop ... And I have not discovered anything except a couple of shareware utilities capable of doing 70-80 search + replaces at once. If I ever find a text editor capable of batch search and replace ... that'd be like "Wow!"]

[revelator]

textcrawler is potentially dangerous i found as regardless of filters it also replaces those same strings in executables and dll's. other than that its ok

ultraedit was one of my favorite tools some years back but its not free. it can be used free of charge for a time though.