Automator/Mac script to convert QuickTime files for Mobile Devices

I require an Automator script, or the like, to be run on Macintosh computers, G5's or MacPro's, which takes a ProRes or similarly encoded QuickTime file, and convert it to an iPad or iPhone compatible h.264 file. This application can be coded as an applet, an Automator workflow or right/command button click service, which converts the file in its current location, to the desired file type, giving it a new name to distinguish it from the original.