Free: Contests & Raffles.
I went with the moultrie, believe its called an A5... fairly basic, but good brand, about 70$ online . easy to use. video mode takes 10sec vid clips.. i'm happy with it.
Damn near any Bushnell Trophy Cam model. Amazing Battery life, extremely easy to program, and the strap that comes with it has the capability to go around huge trees. Just write some creepy death threat on the back to scare would-be thieves and you're good to go!
Tommy, got the A5 from Amazon.. they appear to still have them http://www.amazon.com/Moultrie-Glow-Infrared-Game-Camera/dp/B00AP311JQ
Help on finding a trail cam
I have the Primos 46 (older model) It is ok if it is on bait but it is too slow for taking trail pics. Good battery life though.