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.
Preview | Download

More responsive themes: Responsive WordPress Themes

A magazine theme with a girly feel to it
Price: $79
Beverly is a beautiful and feminine premium magazine theme that comes in a responsive design.  This chic design doesn’t require much tinkering.  You can modify the theme color settings through a theme options panel, with a few clicks you can change the feature slider, flickr gallery, and your social media buttons.  This theme is flexible enough to be used as: a website or editorial (magazine-type) purposes such as lifestyle,  beauty, mommy, or parenting blog.
Preview | Download

More responsive themes: Responsive WordPress Themes

A responsive design with magazine layout
Price:
Papuros Child Theme + Backbone Framework: $79

Papuros is a magazine theme with a custom homepage and 2 layout options (blog style or category layout).  Additional features include page templates (custom video and gallery), theme options panel, and SEO options.
Preview | Download

More Responsive Premium WordPress Themes

Responsive theme with a fresh feel
Price: $35
A modern WordPress theme with style customization features to make the theme your own.   Theme features include: 3 unique sliders (Book Slider, Motion Slider or Simple Slider), unlimited color variations (change fonts, font sizes, background images), unlimited sidebars, contact form builder, different page layouts, 3 custom post types, 4 portfolio layouts, and much more.
Preview | Download

More responsive themes: Responsive WordPress Themes

Revamp your hosting site with this specialized theme
Price: $49
CloudHost is a premium Web Hosting theme that uses a creative homepage slider and has many animation options.  You may also change the site’s background color and design, control parts of the appearance through a theme options panel, resize images automatically and use Lightbox for images.
Preview | Download

See More Themes: Best WordPress Themes 2012