Today I received and email from Digi-Key which some one you probably received as well and they have a really cool web-based tool to put circuits together and I just wanted to share with all the audience:
http://www.digikey.c...t.v_sub=2817794
I remember also trying in the past a pay tool that allowed you to test circuits after putting it together in the tool, all soft circuits, not real circuits, so you can try it in your computer before actually building one and frying it but I can't remember what is call, if someone does, please share the name of it as it is very handy.
Thanks