Under the hood
Lucida Grande is available from Fonts.com and MyFonts.
Helvetica is available from Fonts.com and MyFonts.
Courier is available from Fonts.com, Fontspring, MyFonts, Typekit and YouWorkForThem.
FF Meta Web Pro is available from Fonts.com, MyFonts and Typekit.
FF Tisa Web Pro is available from Fonts.com, MyFonts and Typekit.