In The DAM Book, I outline a very useful add-on to Photoshop – Dr. Brown’s Captionmaker. (Script available free here.) I helped Russell make this script, and find it to be very useful. Shown below is an image that it creates. The script makes a frame around the image, pull metadata and drops it into the frame, can resize, convert to sRGB, run an action, and more.
Note that the CpationMaker does not yet work for CS5, but Russell said he would (hopefully) add it. Currently it is available for CS2, CS3, and CS4.
In this case, I typed the free text “Dr. Brown in Las Vegas” into the box, and had it pull the file name and insert it, and I also told it to put my credit on the image. Here’s a picture of the interface.