The Sony Alpha a7 full frame mirrorless camera is currently listed for $398 at Adorama ($700 off). This is the lowest price ever for a full frame digital camera. Some of the listings also include free accessories. The same camera sells for $998 at Amazon and B&H.
Update: this was most likely an error and Adorama will probably not honor the advertised pricing. If anyone gets the camera for $398, please post an update in the comments section.
Here are the Sony a7 specs: