Sony NEX-F3 w/18-55mm & 16mm for $500 (other NEXxies eligible too)
The Sony free 16mm f2.8 NEX pancake lens promotion continues as you can see at Adorama and also the detailed table with all eligible cameras we just posted. All the cameras that have the "Save up to $248.00 with bundle." text under them are eligible for this offer.
With the Sony NEX-F3 with the 18-55mm kit lens now going for $500, and the free 16mm f2.8 pancake lens coming for free, and the NEX-5N kits running out at hot prices at authorized and reputable dealers, this may be the most affordable new-in-box-from-authorized-dealers entry-point into the NEX system at this point in time.
NOTE: if you are buying at B&H and Adorama, look for the "Buy Together and Save" link, click on the link there, and look for the 16mm f2.8 lens shown with a $250~ discount that makes its price $0. [see example]
UPDATE: If you want to stock up on lenses, B&H Photo is offering the above kits along with the 55-210mm lens for $650. You are essentially getting the 55-210 for +$150. Look for it in black, white or silver. They are in pre-order at the moment.
And if you are a prime fan and want more prime NEX lenses, you can optionally grab the Sigma NEX f2.8 duo (19mm and 30mm) for $200 total.
For a refresher on the camera, check the list of completed Sony NEX-F3 reviews.