Buy business web template with total customization option. You may get layouts in the market designed superbly but with little scope of customization. On the other hand if you go for open source developments like the Drupal, Joomla or others then you should buy layouts designed for particular themes. Otherwise your developers or the designers will face problem to make layouts completely fit for your business. Even in SEO related changes there will be problem.
The next thing which comes in the notice of the visitors is the header of the layout. For this very reason you have to choose a business template that has option to highlight your offers on products or services in short in that place. You may take a portion to place a short video to give a glimpse of things. Placing animation in place of static images always work.