Um, yep.  Go to any professional 3D forum and they will say: render 3D CG out to frame images, composite in:

QuickTime Pro
Final Cut
Adobe Premiere
Adobe After Effects
...

Do you think that the big studios use 10,000 machine render farms and render to a video?  No way.  Imagine if 3 months of continuous video render was halted by a power failure - yikes!  Additionally, it would not be easy to construct a linear video from a non-linear render farm.

Besides the two major advantages, you also have an untainted (raw, uncompressed, non-mpegd) means to do NLA, tweak sections, and edit the master to whatever (1080HD or 320x240 web).  This means that you can get the best results for the desired end product without betting the whole farm on the choices for a long render.

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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