Hi Chap, welcome to the Linux Mint forums
Thanks for joining the forums! As to your VirtualBox challenge, you would normally want to set it up as Bridged Adapter (assuming Airport works with non-Apple devices?). A Bridged Adapter means your VirtualBox guest OS will try to lease its own IP address from your DHCP server, just as the VirtualBox host OS has done. So your VirtualBox guest OS will have a working Internet connection, and it is reachable on its IP address on your local network and it can reach other devices on your local network, such as the VirtualBox host OS, on their IP addresses. A good article (though a bit dated) discussing the differences between the three: http://www.dedoimedo.com/computers/virt ... aring.html
Be sure also to check out the Community
website (tutorials, hardware and software reviews, ideas), and the Cinnamon Spices
website for adding even more themes, applets and extensions to Cinnamon.
You can also chat in real-time with other Linux Mint users. In the Mint Menu, in the Internet section, start the application XChat IRC. You will automatically get connected to #linuxmint-chat for general chat and #linuxmint-help for support with other Linux Mint users.
Have fun with Linux Mint.