Since moving back to MacOS from Red Hat, I do miss a few features:
- ability to resize a window by dragging any edge, not only the bottom right corner
- ability to send the current window to the back with a single stroke (a feature of the Sawfish window manager)
- gftp, a good ftp client
Fetch ($25) looks good so far.
I also liked having XEarth in my root window: a realtime map of Earth as seen from any of several points (default is the Sun; I chose the Moon), showing day and night.