Well this is more of an opinion than suggestion because I believe all the cameras work just need to know how to set them up. They all have pros and cons. You don't have to spend a lot of money to get a good working camera.

I do not believe the flash spooks the deer. I have been watching a lot of the infared camera postings and if you look the deer are looking into the camera most of the time just like a flash. If you are worried about the flash then hang the camera pretty high and make sure you angle the camera down quite a bit to get the trigger speed to work. With that said the cheaper camera you get the father away from the trail you want to be. I have seen a lot of pictures and the only one I would not recommend is the Wildview. It works however the quality isn't the best during the night. I like Stealth and I know Wildview is made by Stealth so look for a camera that has a respectable flash. If you get a Moultrie get a Mojo Rechargeable Duck Battery and just recharge it a lot.

Any questions just ask Someone will help you.

Good Luck

Chad