You should look at UiBinder (part of GWT 2.0). You write HTML and CSS, stick it into a UIBinder template. And in 5 minutes you can take a designed mock and have

You should look at UiBinder (part of GWT 2.0). You write HTML and CSS, stick it into a UIBinder template. And in 5 minutes you can take a designed mock and have it bound to a Java class in a very efficient way. You get things like CSS namespacing and obfuscation for free with this approach too.