Garmin eTrex Legend HCx Personal Navigator
This one is great for the price. You can navigate it with one hand easily. Great for hiking,backpacking,biking,hunting, and pretty much any outdoor activity. It is water proof so you don't have to worry about getting it wet. It is equipped with a highly sensitive gps receiver so whether your in the forest or down in the grand canyon you will be able to locate your position.
The battery life is up to 32 hours of use with 2 AA batteries. The expandable memory option makes you able to store a lot of map information. This gps is readable in direct sunlight. Again it is great for the outdoors.
Overall it is a good bang for your buck. If your want something that does the job but doesn't cost that much then this is the gps unit for you.