Does anyone know a camera that might fit the following criteria please:

I want to fix a camera to a pole that will be outdoors for 6 months to record a timelapse.
I want it to cut into an 1080i video project so I am thinking that it might be best to take stills - say at 8mp - one frame every 2 hours and record onto an SD card. The surveillance-type video cameras seem to be low quality so instead of using internet protocol, it seems better to use in-camera storage...
Any ideas are most appreciated!
Thanks in advance,