Just in time for you holiday digital camera action: Imbasize: Image Batch Resizer.
This application is a Windows Explorer context menu that allows you to quickly and easily resize images - a great way to save space when sending digital photos through email or copying them onto disc. After installing Imbasize, you will only need to locate the images that you wish to resize, on your system. Select the files in Windows Explorer, and then right click on the selected images to pull up the Windows Explorer context menu. You should see an "Imbasize" menu - expand this menu and you will see three options:
Currently, it supports JPG, GIF, PNG, and BMP images. I'm hoping to add more file types in the future.