On a more general note, I find the combination of Magix (nee Sony) Vegas and SONAR to be close to ideal. Sometimes I need to cut video to audio, sometimes audio to video and it's easy with the dual-program workflow.
A recent trick I've gotten into is bringing the video into SONAR, creating stems, then bringing those into Vegas for final tweaking. I think SONAR will never be as capable with video as Vegas, and Vegas will never be as capable with audio as SONAR, so using the two keeps me happy