I have used MacSSH for SSH access , though I have just made the jump to MacOS 10.1 so use the command line ssh as much. For FTP access , check out Interarchy (www.interarchy.com) which is really nice. I use the Alpha text editor for OpenACS coding which backends nicely to Interarchy for remote access. If you are using OSX, Interarchy will use SSH so secure passwords etc.
OSX is turning out to be very nice.. I have it on a Powerbook G4 with 256MB Ram and it is a dream.. and accessing y OpenACS stuff on Llinux servers works smoothly (btw.. I recommend Suse7.3 Pro which even comes with AOLserver )
cheers
Jamie
