Web video conferencing

So what's the best out there? I am doing some research (boss directed) into getting us video conferencing software. Our laps already have built-in web cams, so now we need the "system".

Care to share what your favorite system is to use? Is it Webex or something else.

Just like that spring/fall is back. It is 58 degrees outside in Washington, DC. It is also December 15th! Where is my snow?

I'm melting.