A fully responsive and clean theme with accessible social icons
Price: $20
Summit has many features, including a blog (it can be disabled), accessible social icons, a portfolio section, a place to add your resume, a theme options panel for customizations, a contact form, and more.
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More responsive themes: Responsive WordPress Themes

Colorful portfolio design that puts you up front
Price: $25
Prestige features: Unlimited number of tabs/menu positions, 10 predefined social icons, 20 tab icons, Blog template, Build-in Google Map shortcode, Display Latest Tweets, Build-in resume implemented with shortcode, and more.
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See some more great themes: Portfolio WordPress Theme

Responsive vCard
Price: $25
Showcase your business card on your website, with this responsive and eye-catching WordPress theme.   Features include: User Friendly Theme Control Panel, 8 predefined backgrounds, 5 predefined colors (Yellow,Blue,Red,Purple and Green), 21 Prebuild Transitions FX, Translation Ready, and more.
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See some more great themes: Business Responsive WordPress Themes

An easy to customize business theme

Prominent is a beautiful and easy to use business theme.

$35 at Themeforest

Theme Features Link: Prominent WordPress Theme

• Easy to use Theme Options Panel

• 5 Custom Portfolio Column Layouts
• 2 Column Fixed Layout
• Custom Sidebar

Prominent is a premium theme for the self-hosted (.org) version of WordPress (read this). Premium themes typically include support and updates. Visit ThemeForest for complete information and contact them if you have any questions.

Check out this list of Premium WordPress Themes 2011 Visit Home Page to see New WP Themes