Circuit design software

Again I suggest upverter.com. It's far beyond being a "toy".

I'm a huge eagle user, I have one of the expensive licenses. Upverter totally won me over with their part editor. It's the first one I ever used that was intelligent.

The only draw back I have found is I can't work on circuits while I'm on a plane.

I'd be shocked if eagle was the pseudo-standard for more than 2 years from now.