Pastor,
For $100.00 I think either the Moultrie D-40 or the Stealthcam I-590 are pretty decent. I don't own a D-40 but many on this board do. I do own a Stealthcam I-590 and from what I've seen of the pictures, I think the Stealthcam has better quality pics. When I bought my Stealthcam they said the batteries would last about three weeks but I have been getting more than a month out of a set of batteries. If you really want to step up in quality, save another hundred and for $200.00 there are alot better cameras out there. Whatever you decide, enjoy it. This is a very addictive hobby.
Blessings.....Pastorjim