Greg's Browser for Mac

From Greg's Shareware:

Do you think the Finder is too slow and clumsy when navigating through your folder structure? Do you perhaps use a hierarchical Apple menu utility but are tired of zigging and zagging your mouse from submenu to submenu? Or maybe you just like miniature icons. If so, then you should try Greg's Browser. Displaying multiple folders side-by-side in a single window, Greg's Browser lets you simultaneously see the contents of a folder, its parent, and a subfolder, providing a quick and easy way of moving both up and down through your folder hierarchy. Greg's Browser can browse into StuffIt archives just like they were normal folders, and it uses the StuffIt Engine from Aladdin Systems for stuffing, binhexing, and expanding files.