Should I buy a PS3 now or wait until March?

There is no way you will be seeing a price drop from now until March. PS3s are only $300, and for that price, it's a bargain. Remember the $600 price tag from a while ago. It would be best to get yours as soon as possible. Plus, Final Fantasy XIII will be moving units so who knows if you'll be able to find one then, especially if they make bundles for it.