It was considered accidental damage and will not be covered under the warranty.
Sorry to hear that, guy...
the silver lining... it still works
A few options...
Plan A:
Looks like its time to start stickering your book.
Plan B:
It might be beneficial to check out ebay for your model mac but one that is for "parts only" and sold wicked cheap and you can swap out the guts to the in-tact body?
Plan C
Or... you can always snatch up a Speck Satin
Just a few idears