Arduino Camera

This is a fairly simple project. I need to build a micro controller based project that takes a picture twice a day and the picture needs to end up on my PC. This will be used to monitor a sensor in cold conditions approx 30 meters from a building. Basically Arduino or another processor Camera / Hi-res if possible IR Led to capture (it's cold and very dark) Battery, must last 4 months so it's only active twice a day. You can suggest everything else about the project and delivery.