XY Servo control

After taking a look at some of the video of defconbots and a guy who has mounted an x-y head controlled camera on his model plane - and uses it to fly, I thought I should get into the action.
One place I would particularly like to use this is on the aft camera on the ROV - allowing surface controlled panning and tilting so we can see what is around. Basically two servos are used (one for each axis) and a laser is used in my experimentation (my miniature video camera is currently refusing to behave). At this stage this is just a proof of concept design that will be adapted for bigger and better things.