Something I've been running into but have no idea how to actually have Photoshop do this. When I get high res images from a client, we save them down to medium res and low res. To do this currently, I have two actions, the medium saving the images down to 150 dpi and the low saving down to 72 dpi. Right now I've been running each separately through the image processor. This is all well and good, but ideally I would love to run one script that once I select the folder with the high res images, would run both actions, putting the downsized medium res images into a MEDRES folder and low res into a LOWRES. Seems silly, but it would save time and would be especially helpful for the other guys around who are not as photoshop savy.
You may want to take a look at Image Processor Pro. It probably has everything you need. The current rev can be found here:
This is a stable release and will probably be the v3.0 next week if no one reports any problems in the next week or so.
Ya, I happened to run into that in my searching. Right now that is my fallback if I cannot figure out a simpler way for the non-photoshop savvy people in the office.