A big portion of your decision should be based on how you are going to use the camera. If you are putting it over bait the Moultrie cameras will be fine, but if you are just trying to capture deer using trails you will regret getting the moultrie because the trigger speed is so slow. If you want to check out some reviews here is a website to check out:
http://www.chasingame.com/index.php?id=1
I went with a Bushnell Trophy Cam chortly before christmas and I still have it in the woods with the original batteries and almost 2000 pictures in miserable weather. Two weeks of below zero temps (down to -20 over night) and rain/ice/sleet/snow. Trigger time is excellent. You can pick on up for about $160 bucks on line. You can get a Cudde for about $200 online if you get the capture and not the IR. If you're looking for something under $100 I would go with the Tasco they have at Walmart or if you are putting the camera over bait the moultries.