Basic help required for multiple files to be opened from Bridge to PS

Hi

I am attempting to shave off a few hours from my workflow and because I'm new to Bridge I'm unsure how to do this. I'm pretty sure anyone out there with a small working knowledge of Bridge or CS3 could help me.

I am attempting to open three instances of the same RAW file into CS3 from Bridge. The three instances, although the same image, need to go through CameraRaw and change the exposure. One normally exposed, one +2 exposure and one -2 exposure. As you may have worked out I am attempting a pseudo-hdr effect with the one RAW file.

How do I, with just one click, open the file three times, change the exposure each time, and then save the differently exposed files as tiffs?

If it's ImageProcessor that I need to use then I'll admit I can't quite work out the rules for doing this!

Any help gratefully received.