Audio Sync , 2 camera shoot: Need Project Advice

Hi Friends,
Question for you from a newbie who will be shooting my first "major" project tonight:
I'll be shooting a 6 minute video with two mini DV cameras, each at different fixed angles. The subjects are talking heads.
In addition, I will be recording a live audio (speech vocals) track onto a computer, which I later must sync with the camera audio. Ultimately, this audio will replace the camera-captured audio.
Since I will importing the raw video and audio feeds into FCE 3.5, and then cutting it up, I don't want to lose sync between video and the separate (imported) audio track.
Is there a way to sync the video track with the audio track, then "import the audio track into the video track as its new "native" audio (i.e. meld them together into one track, replacing its original audio track)?
Or, is there a better way to approach this project?
Thanks much for your advice.
DJ

You're assuming the the two will sync up, which they might. You didn't say how you're making the live recording in FCE, but mostly likely it's going to be in 44.1. You'll need to convert that to 48K.
The best approach, if possible, is to take the sound recording and feed it to the two cameras so they can record it directly as they shoot the picture. If that's not possible and you have to make a separate recording I'd connect up the sound to the camera tracks.
Lay the camera A video and audio in the timeline. Turn on the audio waveforms. Put the separate audio into the timeline underneath. Sync up the audio and video. Delete the camera audio and link the separate audio to the camera A video. Drag that back to the browser and make it a master clip. Repeat the process for camera B.

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