When we open up the article system in April to everyone we're going to also hold a competition for "best" article for the month. All crossbones authors submitting articles now would be included in the competition. We'll choose a selection of the 10 or so best articles and put them up to a vote in the forums. The winner will get an award that will show up on their profile and in the forums as well as something physical (at least that's the plan).
I need ideas though for what prizes you think would be pretty cool to have. What do you think of this idea? They don't have to be trophies but can be anything really.. thinkgeek.com could be a source, for example.