Cheapest I've seen this in a while 3% quidco too
For a powerful main flash for general photography, the Nikon Speedlight SB-600 Flash is compatible with the D70 and D2H Creative Lighting System cameras and features Nikon’s latest i-TTL monitor pre-flash metering technology.
It also allows fully automatic exposure control when used in groups with other SB-600 Speedlights, controlled either by a Master SB-800 or the new Commander function of the new Nikon D70.
Meeting the needs of most photographers, the Speedlight SB-600 features an LCD viewer with back-lit buttons for user friendly operation.
The Speedlight SB-600 Flash has a guide number of 30/98 [ISO100,m/ft], 42/138[ISO200,m/ft] (at 35mm zoom), an auto zoom of 24 to 85mm and the same wide area AF Assist Illuminator as the popular SB-800.
Content Use Lighting
Guide number (for ISO 100) 30
TTL Compatible with i-TTL modes (automatic balance flash/weather settings), D-TTL, TTL, manual
E-TTL measure N/A
A-TTL Measure N/A
Power source 4 AA batteries
Size (mm) 68 x 123.5 x 90 mm
Weight (g) 300 g
Included accessories AS-19 base, SS-600 soft case
Other Auxiliary AF light with similar range as the well-known SB-800