I've been an OSX devotee for a long time, and I feel your pain. I use forklift because it's relatively lightweight on the memory and it does what I need to do efficiently. I was thinking of going with PathFinder, but I decided against it because it was a bit too memory heavy for me. PathFinder has more features, but then again, I'm not looking for a command-line replacement...just a more convenient way of navigating through folders, copying things over, finding things...