Thank you for sharing your experiences with your PCB Design program. I like so share my impressions as well. I have been using EAGLE PCB Design http://www.cadsoftusa.com/ for quite some time and I am very satisfied. It's not online, but I like to keep my data safe on MY computer!! About Eagle, I like the way they support you, when you´ve got questions. There is a good community to ask, and also the on-site trainings, webinars and tutorials are great help. Furthermore the program is logic, so you can use it intuitively.For further reading there are also some pretty good book to this topic. There is a free trial to test this program. Go to http://www.cadsoftusa.com/download-eagle/ and check it out yourself.