I have seen the Moultrie D-55IR Camera's on sale for under $100.00,they are good camera's with 5.0 megapixels and long battery life...I have 1 up right now taking pictures of Doe's with fawns and several Bucks in Bachelor Groups!There are several new trails out on the market also,check around and do a price comparison to get the best deals out there.You can also look at Trail Camera reviews to see how well different ones perform before buying one that isn't what You would enjoy.
www.chasingame.com
I would also recomend spending a little more money and think about getting the Cuddeback Capture "Flash" Trail Camera,it has a much quicker trigger speed and it will catch most Deer and Animals other camera's miss.They were having a Rebate offer for $25.00 back on the Capture and $50.00 back on the Capture IR.