I feel for ya.
I'm in the same boat with UPS. I have a 27" cinema display sitting at the local depot (came in this afternoon). But unfortunately I have to wait until Monday when it goes out for delivery.
Crappy part is it was supposed to be here today.
Same thing happened last week with my Air.
Supposed to come on friday, but came on tuesday instead.
It sucks, but thats the way it is.
My advise? Try not to think about it.