If you are anything like me, you should get a lot of enjoyment out of using a trail camera.
A couple of years back I bought a Leaf River brand that used an ordinary 35mm film camera. It worked well, but I guess I should have waited and bought a digital model because of the expense of getting film developed...and the frustration of having to wait so long to see what was on the film. I think I only put maybe two films through that camera. I used it to prove that there was a wild pig on some nearby farmland, plus I tried it out in a few different locations.
I wouldn't worry about how high the megapixel rating is either. Things that are possibly more important are:
-Reliability, ruggedness and weather resistance
-Battery life
-Ease of operation
-Alignment of the camera with the infrared trigger (ie: will the target be in view of the camera when it trips the trigger?)
Not so long ago I got the urge to use a trail camera again, so I started to research the various options on the 'net. I found quite a few different comments and reviews around the place...and decided in the end that I'd have to spend too much to get a model that everybody seemed to think was good.
Id be tempted to get an infra-red model. This probably won't give you wonderful magazine-quality pics ...but it should give you a good idea of what is hanging around without having a bright flash showing everybody where your camera is.
Sorry I can't recommend a particular brand.
I will be interested to hear what you get, and how it all works out. Here are some pics I took with mine:
Here's one of the pigs that wandered close to civilization:
A family of hogs:
Light-colored fallow deer: