Is there one company that you would really truly love to work for? Tell them so! How? Simple. By using the specific company name in the Objective section of your resume. Example:

Staff Auditor position with Ernst & Young.

That says it all! If you love them, tell them so.

P.S. As in love, dont go telling this to more than one (or two?) at any given point in timeotherwise you could begin to look rather fickle.