IonCable,
Although you'll hate me for saying it, you should think about changing your workflow.
FCE captures differently from iMovie since it also captures the timecode from the tape. This allows you to use the tape as your back-up since at a later date you can re-capture the project.
Some options to consider:
1) In FCE use capture clip to only capture the bits you need, avoiding capturing the media that you would destructively edit in iMovie
2) Look into Batch Capture techniques for use within FCE. Where you log the in and out points of clips and then write a file containing these. Import this file into FCE and it will do all the capturing for you
http://homepage.mac.com/heywood_si/i...9T13_50_07.txt
3) Capture in iMovie and convert the footage using this app. It will only convert the audio (that is the problem) and so is relatively quick.
http://homepage.mac.com/heywood_si/i...1T13_09_18.txt
4) Destructively edit in FCE. Set your editor as Quicktime. Open the captured clip using 'editor' and trim the clip there.