Phoenix is offering a $200 iTTL dedicated flash for Nikon digital SLR cameras. It goes by a longish and awkward name of DZBIS-112iTTL and claims to be completely fully dedicated to Nikon DSLRs such as the D200 and D80.
The DZBIS-112iTTL (whatever!) flash unit has a guide number of 112 (50mm at ISO 100) and a recycle time between 0.5 and 6 seconds. It features i-TTL dedication and is compatible with Nikon’s Matrix Balanced i-TTL.
The Phoenix flash unit features front and rear curtain synchronization, slow synch, and red-eye reduction compatibility.