It's easy to get duped into accepting a bad deal if you don't know what you're looking for. In fact, it might be best to hold off on a trip to the dealership until after you've done your homework.
There are plenty of sites at your disposal that can inform you of different aspects of the car-buying process. Kelley Blue Book lets you compare the prices of cars, find dealers in your area and read reviews from experts and regular consumers. Edmunds.com is another resource that can give you tips and details about buying used and new cars.