[Closed] Recommend me a helmet camera

Evening
After one too many near misses riding to work, including one young lady who deliberately swerved at me, i am thinking of getting a helmet camera. I never thought i would be in this position, but with a wife and two young children, i want to ensure that should i be hurt, i have as much evidence to support my case.
Requirements: at least two hours battery time, hd, water proof, commute will be night and day, reasonable wide angle, reliable, preferably with sound recording function, memory to suit ride time,
Any advice gratefully received.
ernie