I know your in a hurry, but if you can wait or find someone on Ebay that would overnight a chipped key to you, you'd be better off. The dealership is going to charge you 4 or 5 times what you could get on on ebay for. Unfortunately, I'm not sure exactly what they'd charge you though. there are always some on Ebay. and you can find the procedure for "setting" the chipped key on here. Good luck!!
and welcome aboard...sorry it's under such cruddy circumstances!