Identify JPG files with EXIF information?

Recovering from a data salvage… and would like to find all of my original JPG files as were uploaded from my digital cameras. Figure simply culling out those JPGs with EXIF info would do the trick.

MacOS 10.5’s Spotlight can index that info… but I’m not sure I know how to limit the results to those in a specific directory (instead of across the entire system). Also, I think Spotlight might be a little too user-friendly… tagging EXIF info with more generic labels and possibly mixing that info with normal file attributes, like “Date picture was taken” in EXIF with “date file created” in OS.

JPGs being binary, I don’t think a shell script alone will work… but have seen some mention of EXIF functions in PHP.

Anyway, anyone else ever have to do this? Got any suggestions for me?