Geoff wrote:
I'm wondering what exactly is free about something that costs $100 ....

Yup. If you want PCB design tools that actually *are* FREE
http://www.google.com/search?q=cache..._free_software
--instead of some bait-and-switch crippleware from a spammer
(or lock-in-ware from a fab house),
here are 3 popular suites (and a bunch of other stuff)--no strings.
http://www.google.com/search?q=cache...DA&strip=1#PCB

A bit more detail on the apps he
http://www.google.com/search?q=cache...Source&strip=1
(The link without the &strip=1 is initially easier to read
--but you have to click *show more* a bunch of times
to see all the good stuff.)

If the *Libre* part of *Gratis and Libre* isn't important to you,
look at TinyCAD.