At Articulate Live 2009, Fellow MVP Spectre delivered just a fantastic talk on getting good recordings (
http://upload.articulate.com/2009/Ph...90308-1121.zip ).
One thing he suggested in his talk--building a Porta-Booth--really helped us (slide below is from Phil's talk). Came back from that conference and built one right away.
A
fabric storage bin and a few sheets of
acoustic foam--and a good cutter and "a little sweat equity" and I had our inexpensive Porta-Booth built.
When recording, the mouse is well outside of the booth opening and we get great results.
It also helps, sometimes, to have two people doing the recording. One narrating and the other controlling the PC (able to "hide" the mouse from the mic better). Then syncing animations after.