I'd wait until May.
In fact, for myself I'll be in Mexico for two years, and I won't play Skyrim until 2013.
Two years? What are the chances I'd be able to correctly guess your age?
Anyways, to the OP, I suppose it depends on how badly you want to play the game. I would say, though, that if you wait until May, it'd at least give modders a chance to get started, so you could jump into those right when you get the game (or after the first play-through, anyways). Not to mention a patch or two to fix any possible bugs or stability issues.