Podium is clean and elegant business wordpress theme that can be switched as business, corporate, portfolio and blogging theme.
there are 7 skins option available, also two slideshow type (3D and jQuery slideshow) and two homepage layout.

Features :

• 7 skins option(wood, red, orange, dark, grey, green, blue)
• 2 slideshow style (3D and jquery sldieshow)
• Custom Post type for slideshow
• Support WordPress 3.0 Menu System
• 6 Custom Page templates (Blog, Blog Alternative, Services, Portfolio, Full Width and Contact Form Page Templates)
• 3 Custom Category templates (Testimonial, Portfolio and Archive Category templates)
• Portfolio page with Pop up Lightbox (support for image and Video type)
• Cufon Text Replacement (2 fonts available)
• Dynamic Sidebar Widget
• Widgetable homepage and footer area
• 7 Custom Widgets (Support for Multiple Instance Widget)
• Built in Ajax Contact Form with validation
• Valid XHTML /CSS
• Gravatar Support
• Auto Image Resizing
• Poweful Admin Theme Options
• XML sample data included
• PSD Files included
• Well Documented

theme update!

update notes for 1.1 version :

• fixed 4 column box title issue
• fixed comment list font size
• removed unnecessary files
• updated shortcodes how to documentation

Skins

Html version available here