Power Supply gone bad

[Steve Talkowski]

I've been taking my power supply back and forth to work and this 
morning the light wouldn't turn on when plugged into my 15" TiBook.

I tried a few other outlets and still no go.  I forgot to unplug the 
power supply from the outlet and about 10 minutes later noticed a foul 
electrical burning smell.  I quickly disconnected from the power strip 
and the power supply was scalding hot!  I think it's safe to say this 
unit is now toasted.

I upgraded to this 1GHz Tibook last November and am still under the 
1-year warranty. My machine is registered and they should be able to 
bring up my info from Apple's main database, right?  Can I just go to 
the Apple Store and trade in the bum unit for a new one?

-Steve