I'm actually looking for a decent camera as well.
It's not an easy choice, especially not when you want keep the price/quality ratio low. I'm not looking for a reflex camera though, they're a bit expensive.
The best reflex camera for me is the Canon EOS series. At kieskeurig.nl
(Dutch) you can find a good overview of which (reflex) cameras are popular.
Depending on what kind of photography you want to do, it's important to have "control" over your camera, by being able to change the shutter speed, f-stops (diafragma), ISO (light sensitivity of your lens). This is very important for the light balance on your photo.
It's also important for keeping your photo sharp, and not blurry, for instance, when you're at the racetrack and you want to take a picture of a car racing by, you'll have to use a high shutter speed, e.g. 1/500 s. The lens won't be exposed for a long time, so your photo won't be blurry. When you're taking a picture at night, of the stars, you'll use a shutter speed of sometimes over 30 s., but you'll certainly need a tripod for that.
Just read the reviews on kieskeurig.nl for some hours, a lot of them contain a lot of information.
Reading some about digital photography won't be bad either (if you don't know a lot about the subject), here