okay i'm hooked on these free vsti's now
they do really unconventional stuff that sometimes fit the bill and without spending days programing reaktor or synthedit.

http://destroyfx.smartelectronix.com/
http://miksybrandt.panicnow.net/downloads.htm
http://www.smartelectronix.com/index.php?selected=home
http://www.tweakbench.com/index.php

and i know this has been posted before, but they're so good...

http://www.kvraudio.com/