After having spent some time analysing a selection of photographs over on the dpchallenge site, think about the things you like to shoot.
Spend some time looking at those past contests on dpchallenge which deal with the subjects you like most. Concentrate on 'minimal editing' challenges for the moment, unless you are a Photoshop wizard. Actually, view as many past contests as you can, and look at the winning and losing images.
Consider how the shots are composed. Think about the depth of field, and the length of exposure. You can find technical information by clicking on the dpchallenge images which interest you, and those which don't! Do not worry too much about what sort of digital camera was used, instead, look at the lens the photographer chose.
Perhaps those of you with dSLRs will learn that you are not using the best lens for the shots you wish to create. If so, then maybe it's time for you to swap or upgrade.