There are two ways to wire two way lights the preferred method requires no junction box in the switch box. There are many web pages available to show you how including the projects section on this site or http://www.ericpalmer.fsnet.co.uk/Lighting.html for example. If you have less general questions then please ask away.
Eric
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!