Looking for video & audio sync software

We record certain daily events from two fixed cameras. They are JVC hard disk digital video cameras. One of them records the audio in higher definition (line).

We sometimes need to combine or splice together edits from both cameras, meaning the line audio recorded on one has to be synced and imposed on the video from the other. We can do this reasonably well now manually, Using Wombat’s MPEG VIDEO WIZARD, but it is tedious and time consuming to finely adjust the audio track so it syncs with the video

So, I was wondering if anyone knows of video editing software that would help make the job easier or simpler. I welcome your suggestions.