I recently had the pleasure of listening to Tape Five's newest album "Tonight Josephine!" released in 2010.
Their style mixes modern up-tempo dance beats and slick production values with classic swing instruments and arrangements, balancing the fine line between "NuSwing" and "Dance" music. If anything, they sound like a swing-focused version of Caravan Palace with a honeyed lineup of experienced vocalists tempering each track.
If you haven't heard them yet, give them a spin. You'll be glad you did.
Sounds a lot like the Puppini Sisters.