© 2006-2008. Fabian Jäger
Shimo is a super-slick client to connect to various Virtual Private Network types. I used it for a Cisco VPN and it worked very well. It just camps up there in your menu bar and was extremely easy to use.
At least for my needs to connect to a Cisco VPN, the Network Manager that comes built-in just needs the vpnc package installed and it has almost the same user experience that Shimo provides.