Air, by Positype, is definitely at the top of my wishlist. This workhorse super family features nine weights, regular, condensed and compressed styles, and a whole slew of special features. Pick it up at MyFonts.
Courtney is the founder of Design Work Life and Seamless Creative, a small design studio she runs with her husband Brian. She now splits her time between developing brand identities for small businesses and soaking up (and passing along) as much inspiration as she can.