Yodot Software has released Yodot Mac File Recovery (http://www.yodot.com/), an app that offers options to recover deleted and lost files from Mac drives. It’s compatible with Mac OS X 10.5 and higher and is currently being offered for US$39.
The application has advanced scan engines that can recover lost, deleted files and folders without affecting the source drive. Files can be restored even after emptying the Mac Trash Can.
Yodot Mac File Recovery Software sports a preview feature. You can recover any file type with any file size as long as there are remnants of the file on the hard drive.