JOSHSALGANIK  Finally. Batch Editing software that works, is affordable, and easy to use. Thats all I ever ask for. 5 Stars!  
(Version 2.3.2)

LARS55  I have been using EasyBatchPhoto for a couple of years now. I love it. As a webmaster, I am constantly having to resize and upload photos. This makes my work much easier and efficient.  
(Version 2.3.1)

ROBERTCOOGAN  Everything was fine, but the watermark feature was a bit buggy. Had to uninstall, but now works fine.  
(Version 2.3.1)

YAY4MERLOT  I personally prefer EasyBatch (-the 'photo'):

http://www.macupdate.com/info.php/id/29733/easybatch

I used to actually use a command-line tool to do batch processing, but GUI apps are a much much nicer alternative.  
(Version 2.3)

JRFSMITH  I have been using Easy Batch Photo and Easy Crop for about a year now and I know that I could not do without either product.

I regularly have to re-size or otherwise edit a number of photos at one time.

These two applications make both tasks easy and foolproof each time.

Easy to learn, easy to use.  
(Version 2.2.3)

BRUMM  24 DOLLARS ....OR just FREE as in BEER:

The best resizer I've found for Mac is the FREEWARE 'ThumbsUp',

http://www.macupdate.com/info.php/id/11898/thumbsup

ThumbsUp can not only create thumbnails or icons for images and movies.

ThumbsUp goes far beyond, it's a superfast batch image resizer, a format converter (for example jpg to tiff, etc.) and ThumbsUp can sharpen (!) and antialias (!) the images (not only the thumbs as falsly stated in the manual) and can do all that in one fast step.

...and yes, ThumsUp is FREEware.  
(Version 2.2.3)

JOHN ML  I'm in Cambodia volunteering for Kiva, and was searching for a fast and intuitive way to pre-process many photos for upload. Because uploads are challenging in Cambodia -- an environment where "broadband" is the speed of U.S. dial-up -- I wanted to be able to reduce the size of photos I'd taken and watermark them.

I found an elegant and simple solution in EasyBatchPhoto. I'd highly recommend it to anyone who wants to easily perform commonly used batch processes on their photos!  
(Version 2.2.3)

ZOLIVE  Réechantillonage de qualité; réglages fins et complet;

Beau travail.

Toutefois apprécierait de pouvoir traiter plusieurs presets en une seule étape.  
(Version 2.2.3)

GRAYSAX  I haven't used the application much but i look forward to checking out the full blown program. I will update as i find things out it. c u then....

g  
(Version 2.2.3)

WITHTLC  Very Good Batch image processing program... GraphicsConvertor (Lemkesoft) can perform most of these same operations but not as easily, nor as cleanly. Wish it had EXIF batch time offsets (yes iPhoto will do it but the photos are not always in iPhoto) - as that would seal the deal. Program has a few GUI inconsistencies (you can't drag a folder to EXIF info browser) and its prompt for where to put output is not the standard file folder/selector.. Defining presets for workflows is really nice for defining frequently used workflows.. Uniq features include watermark capabilities, and auto centering of resized images with fill to fit "frames".  
(Version 2.2.3)