Adorama has the Flashpoint XPLOR 600 HSS TTL Monolight (AD600 TTL) for $499.00, a $250 savings from the $749 regular price. This sale ends on Sunday at 5pm ET.
This kit has the XPLOR 600, a portable 600ws monolight powered by an internal Lithium Ion battery, capable of over 450 full power flash bursts on a single charge. It supports HSS and TTL, via an optional Canon R2 Radio (2.4 GHz) Transmitter (sold separately.) A great value, and tremendously well reviewed.