(SOLD OUT) Canon 5D Mark III in-stock now for $3500
As of a March 29, 2012 at 12:08pm EST re-check, the Best Buy website is sold-out online for the body only, but they may have it for store pickup. However, that is a wild-card and we obviously cannot input 99,999 zipcodes to test every possibility.
On the other hand, the kit with the 24-105L lens is in-stock at many more retailers at its opening price of a used Honda Civic (aka $4300). See the current situation at the just-updated 5DMk3 stock status page... For more on the camera, check its slowly-growing list of completed reviews.
Previous updates after the jump for historical reference only...
UPDATE (March 28, 2012 at 3:16pm EST): The Best Buy website has returned after scheduled maintenance and they are accepting orders and they continue to have the Canon 5D Mark III body only in-stock for its starting price of $3500. Click on "Estimate Arrival Time" to see when you should expect this.
As usual with high-demand and low-availability cameras, don't do the victory dance until you get a shipment confirmation.
A screenshot crop of the Best Buy website is shown below with the relevant parts with yellow highlighter:
Please also note that the Best Buy website will be undergoing planned maintenance from Tuesday at 9pm 6pm Central (CST) time until Wednesday 2pm Central (CST) time!