Mac OS
Mac OS X provides CSAIL users with polished native applications as well as BSD-derived unix internals (accessible through Terminal). We recommend all Mac users join
mac-users@csail.mit.edu -- subscribe at
https://lists.csail.mit.edu/mailman/listinfo/mac-users
Additional notes that probably belong here can be found at
Leopard-OSX105, including instructions for setting up X11.app (to locally display X programs running on debian hosts, for example).