One thing to bear in mind, "save for web" destroys EXIF info. "Save as" and use JPEG preserves it.
I don't think so. The shot in post #10 above Is This In Focus? was saved with 'save for web' using CS5, and this is the EXIF using my EXIF viewer. Not sure about the basic versions of Photoshop, but CS4 and CS5 are OK.