The product which came up most frequently in the Googling I did was CoRD. I know nothing about it other than what I gleaned in the search - which was only prompted by your thread. As a Mac user, I had no idea what system admin was available. But it's certainly easy (and largely automated) to keep an OSX machine properly backed up.
I have CoRD on my Mac at home and use it for accessing the Windows based servers we have at work.
Unsurprisingly, it gives you a Windows based interface on your screen.
Somewhat surprisingly (until you've twigged what is going on) you have to fool the Mac keyboard into thinking it is a Windows keyboard - it's kind of clunky in the way it works.
So clunky, that it was easier for me to take a work Windows lappy home and use that if I need to work,rather than use CoRD.
