Exporting a Logic Pro 9 Project to FCPX/Premiere Pro with all files kept the same
There are two major formats for exporting audio files en masse: OMF and AAF. Logic can do both, but it would appear - http://forums.creativecow.net/thread/8/1127487 - that FCP doesn't natively support either one. For a one-time project, the free trial of Boris Transfer FCP should be able to handle AAF. For long-term though, unless you have Boris or Automatic Duck already, you'd probably be better off exporting All Tracks as Audio Files, and bringing in them one-by-one. This video walks you through the process of AAF, OMF, or Audio File export.