Free 50-200mm lens with either Samsung NX20 or NX210
If you were considering either the Samsung NX210 w/18-55 or the Samsung NX20 w/18-55, you can get them through the aforelinked B&H Photo pages, and get a free Samsung 50-200mm f/4.0-5.6 ED OIS II Lens. Simply add the NX20 or NX210 to cart. The free lens will be automatically included by B&H Photo.
On the other hand, if you just want to test the NX waters without making a big financial commitment, Adorama is offering the NX100 with the 20-50mm lens and the SEF15A external flash for $310 with free shipping in your choice of black kit or white kit. These are brand new, not refurbished.
For more on these cameras, check the list of completed NX-series reviews.