Well...I can think of a few ways to do it. One is done in the camera, and it's generally called a Swish-pan. At the end of a shot, or the beginning of a shot, pan the camera quickly into place. The only problem with this is that it limits your editing creativity, since the swish is where it is. Another way to do it is to shoot a set of swish pans for each of your shooting setups - do one left to right, right to left, hell, even top to bottom and bottom to top. Then you cut them into the static versions of the shots where you need them, either with a cut or a soft-cut.
Another way to do it is to use one of the Smear distortion effects in After Effects (I forget exactly what they're called, but they should be under the Distort category. Animate and blur it, and you're looking pretty good, but not quite as good as the in-camera version.
The third way to do it is to buy some stock swish pans:
That's one place you can get them. Problem here is that you'll have to colorize them to match the shot you're leaving, unless you find one that gives you a creative idea for using it as is. You mighy even find some stuff out there on free stock video sites at the end of "real" shots, since swish-pan didn't become a creative effect until maybe the forties or fifties - before then it was considered cutting room floor material.