Hornseeker...if you can leave a trailcam alone for 2 months, you're alot tougher then I am! I have a tough time leaving mine a week at a time.
I've used an old 35mm homebrew for 3-4 yrs and had decent luck, but many times the film would get used up the first night and the trailcam would sit there for a week without taking any more pics.
Last winter I bought an original 3.0 Cudde, great camera! I had great luck with it throughout the spring and summer. The batteries(4-D's) lasted for close to 2 months and 1200 pics, most at night using the flash.
In September I had it set up at a wallow and caught this bull bugling right after he wallowed. My best pic so far!
Unfortunately, some bunghole stole my camera the following week! It was password protected, so it's not usable by the thief. Some good folks on another website passed the hat while I was gone elk hunting and came up with enough money to replace my trailcam, so I bought a Cudde Expert. I'd read the reviews from "chasinggame", but so far I haven't had any problems with the new cam. The new mounting system isn't nearly as good as the old camera. A friend built me an "apb"(a$$hole proof box), I'll post a pic of it. If the older 3.0 was still available, I would've bought another one of those. Don't know why they changed them, the original was a GREAT camera!
I know several guys who the Moultrie Game Spy, and they get good pics. One model comes with a solar panel to keep a big 6V battery charged.
I know a guy with a Leaf River, he get's some good pics also. I also know several guys who get good pics from a new digital homebrew. Like mentioned above, some cameras have a slower trigger then others. So you have to place the trailcam accordingly.
But some guys complain about only getting pics of an animals tail when they have the cam aimed across the trail and not aimed down a trail where an elk will walk into the photo.
I've had my trailcam placed at wallows, trails, across openings, and have yet to get a full pic. Occasionally I'll get a partial of a deer running thru, but that's rare.
Anyhow, just thought I'd give my 2 cents on the subject.