Go ahead and short. I think you'll be overrun by those getting out of their short positions! March and April are historically VERY GOOD months for GME. IMO, there will be a run up to 26 pretty soon, maybe as early as mid-March. We'll see.
I havn't shorted yet, but I will watch it closely for the right opportunity, because I think 2 years from now, this company will go the way of other obsoleted outlets like 'Circuit City' as their online presence goes the way of 'myspace'.