Great Mac OS App
If you're a Macbook or Powerbook user, then its possible you've seen the Cisco VPN client for Mac. It's pretty ugly, and no fun to have lingering around, taking valuable real estate. However, for some of us, its a necessary part of our lives to get on corporate or institution networks. However, Erik recently turned me on to Shimo, a great little discreet app that gives you a much nicer, more intuitive (at least for Mac users) interface.
It works on Intel and non-Intel Macs, and requires that you have the correct Cisco client already installed. I haven't tried it out very much yet, but I think it'll be a very useful little app.