I recently made the miter saw stand from Popular Woodworking.
I have been wrestling with dust collection for a saw on a movable stand.
Inspired by the website of Barry Burke:
http://www.bburke.com/wood/jigsandtools.html (scroll to the bottom of the
I have completed my version of his dust collector. It works quite well. It
is large (40" across) to accomodate the swing of the saw from left to right.
I have posted pictures on alt.binaries.pictures.woodworking