I did a review of Singular Software’s excellent PluralEyes, which syncs video and audio from separate sources, quickly and easily. It’s remarkable software, and I love that if you have footage from multiple cameras, it can sync, and if you wish, replace the audio with a clean track! It’s available for Final Cut Pro X and FCP 7, Premiere Pro, Avid Media Composer, Sony Vegas Pro and EDIUS. Check out my review of PluralEyes at Digital Media Net.