They're nice machines -- good luck finding a trade. Considering how much those Alienwares go for, you should be able to find someone somewhere to take you up on it (though those Mac owners can be a bit possessive of their machines, I've noticed).

'fraid I can't help you, though... I've got me a big ol' loud, heavy monster of a Sager here myself. It's a Powerbook-lover's worst nightmare, but I love it.