Resizing multiple images at once?

Is there a way in photoshop to resize multiple images at once?

I've got all these huge size images taken with a digital camera that I want to shrink down to 640x480 or so for upload to my galleries at pbase.com. I'd hate to do them one by one.

If they are all the same size, create a batch. Rather than explain it, search this forum using the handy dandy "quick search" for batch and the method should come up. You can set the folder and the image naming convention in the properties. =)