Video Production in X3

Well first of all, thanks for the plug 
 
I'm a huge fan of Sony Vegas Pro, probably because it started life as a DAW that grew video capabilities. It's great to be able to use VST and DirectX plug-ins, ASIO, etc. Also, it lets me "think like a musician."
 
As a result, I tend to use SONAR and Vegas as a team, but not always. Also, it depends on the video...
 
Tutorial Videos
For my advanced workshop videos, I did the narration first in SONAR (with a lot of editing and sweetening), then loaded it in Vegas. While Vegas played back the narration, I listened and did the moves required for the video in SONAR (while capturing the moves with Hypercam). I then took the Hypercam video, which also contained what I was doing with the audio in SONAR, loaded it into Vegas, and made it conform to the narration. I then rendered separate audio and video streams from Vegas, which was what Streamworks wanted in order to assemble the videos.
 
 
This requires using two interfaces and frankly, the patching and preferences were sufficiently complex that I ended up writing documentation for how to do it! That way I just had to follow the steps to set it up.
 
Soundtracks for Existing Videos
This is what I did for trade shows like for Harmony Central. I'd edit the footage first in Vegas, then load the video into SONAR. I'd then create the sound track in SONAR. In some cases I also worked on the audio part of the video in SONAR, or from audio "flown in" from a separate hand-held recorder. Once the audio was done, I'd export, load it into Vegas, and do the rendering from there.
 
Much depends on whether you're cutting video to audio, or audio to video. You can render the video/audio combination from SONAR, which is fine if you need AVI or Windows Media Video (or Quicktime, if you're running a 32-bit system...c'mon, Apple, 64 bits has been around for a while!). Most of the time I need to do MP4, which is why I render from Vegas.

I'm also a strong supported of Vegas Video Pro. I have ver. 13. 
 
I did a commercial for my local Veterans group for a parade and I did all the video in Vegas and the voice over plus music in Sonar.
 
I have also done videos for a local Vet homeless shelter for a few years. Using the same combination.
 
Each has its strength for its end of the process. I like Vegas because it also supports my Mackie Control too. But Premier is a very good NLE (non linear editor).   

I'm with Craig, I use Vegas for video editing. I render a lowres proxy in Vegas and use that in Sonar for music production. A music track is then produced in Sonar and exported as a file. The music file is then imported into Vegas. Very straight forward.
 
I'm amazed at the number of folks that are under the impression that you need to score to the finished video. Using proxies instead is is an old editors trick.

kitekrazy1
 I've had the best luck and stability using Studio One.   

Does SOP still work only with Quicktime, and only the most expensive version of SOP supports video? We don't know which version of SONAR the OP is using, but all three versions of SONAR support Quicktime, mpeg, AVI, and WMV import. That can be very helpful.

kitekrazy1
 Quicktime and 64 bit DAWs don't get along very well. 

AFAIK there is no 64-bit QuickTime codec for Windows. When you install SONAR on a 64-bit system and you reach the optional stuff, it says that QuickTime is only for 32-bit installations.