csu,
I have had great success with this free program called Fast Image Resizer. You drag a bunch of pictures to the program and they are batch resized to your specifications. We did several hundred pics of all sizes for one of those digital frames and it was very impressive.
I have shared it with many business associates when they send a 8mb attachment photos.
http://adionsoft.net/fastimageresize/
It saves a lot of time when you have several pics to do.