I just got some Tasco trail cams at Walmart for $35. They aren't the best but work so far. For me, after having cams eaten by bears and other expensive cameras fail after a couple years it doesn't make sense to spend a lot.
By far the Moultrie D- 50. I ended up buying 4 of them even though I didn't need that many. They take better day and night pics then my Bushnell Trophy Cams and Scoutguard Spartan GO Cams, come with a 4 GB. SD card and all still have over 90% battery life even after taking thousands of pics. $50.00 each at Walmart. Also seen them on Amazon & ebay.
Not really sure. I see they sell else were from $140 to $170. I bought 2 so hopefully they are OK. I played around with the one but haven't got it out in the woods yet. I still like my Browning spec op btc-3xr better. If I were to recommended a camera it would be that one but, they are a little over $100. If you keep your eye open normally you can get one around on eBay for $125-$140