Hi!
I agree the tabbed layout is very nice!
What I have always done in the past is have a "Joomla Template website" setup. What I mean by that is set up a Joomla site, with all of the key extensions that you use on almost every site (SEBLOD, Backup, Editor, Newsletter, etc). Using SEBLOD, set up the "Contact Us" Form, Article layout, Testimonials and all other forms that you might use. Then when you go to build a site you just restore your backup and all of your predefined settings will be in place! Of course then you can use the SEBLOD apps to customize it further!
One idea anyway...