Studium is a fantastic looking premium business theme that was released around two weeks ago by developer VamTam.
It supports custom post types and has 9 different slider options. Designed using HTML and CSS3, the theme can be styled very easily. You can choose a different background image for each post or page, use custom sidebars in posts and pages using the sidebar manager and over 55 elements can be styled using the colour picker. It also includes 11 custom widgets and over 100 short codes to help you style your content.
The portfolio and sliders use custom post types. Rather than use a template, portfolios and galleries can be styled using short codes.
Through the options area you can create an endless number of layouts and move around the slider, sidebars and widget areas to wherever you want.
The included advanced options area (called Vamtam Option Panel) allows you to change the layout, fonts, colours, sliders and much more. I recommend testing the admin panel yourself to get an idea of exactly what it can do.
A license for Studium retails for $35 from ThemeForest. The market for corporate WordPress themes is very competitive though the beautiful design and vast number of configuration options make Studium a great choice for any business.