HSMWorks offers a free 30 trial so you can judge how well it fits your requirements.
This is not demo software, you can post with it and run many common CNC machines. The trial software requires SolidWorks 2008+.
You can request a trial by completing the form at this link:
There is a lot of general info about Integrated CAM on my web site, and more specific information and videos on the HSMWorks web site:
We will be at SolidWorks World 2010 in Anaheim, CA Jan 31-Feb 3 at the Anaheim Convention Center.
HSMWorks 2010 is in Beta right now, and should be released by SolidWorks World.
I've been using HSMWorks for several months, and I've been super happy with both the software and the support. Just a great piece of software.
I switched over from CamWorks, which was nothing but headaches.