Elphinstone
With over 60 appearance options this is the ultimate multi-col premium theme. Responsive full width design, choose how many columns and how far apart they are. Custom coloured audio player, multiple permalink display options, like, reblog, and lightbox icons. Free version has limitations, see details for more information.
Mnemone
This theme is randomly generated, you can pick the maximum and minimum post sizes and how far apart you’d like them, there’s even an option for an expanded featured tag. Premium features include like and reblog links, an alternate twitter display and specifying the gap between images in photosets.
Araminta
A grid theme where you can chose the amount of columns, height and width of posts and the distance between them. Like and reblog links only in premium version.
Septimus
Redesign of Silvanus. A single column with header, choice of three post sizes, and multiple permalink options, you can have them only visible on hover or even have them on the other side of posts.
Broderick
Multi columned masonry theme with foldover animation for image corners. Choose between three post sizes and upto 4 columns.
Lycoris
Single column theme with post information on icon rollover. Choose between 800px, 500px or 400px post width. There’s a ‘floating header’ option which copies your links and fades in when scrolling down like in Broderick.