I used and loved TotalFinder, but it was sooo buggy (specially when copying large files off external drives) that I ended up uninstalling it in disgust. I'm using vanilla Finder.app right now, and don't miss it terribly.

If you need a 'Finder Pro', I suggest PathFinder. version 6 looks promising. I might be tempted to buy it: http://cocoatech.com/pathfinder/