I've been starting to look at laptops for music production. As others have said ADK seems to be the best bet on the PC side--I've also heard good things about the Link Removed.
When I've spec'd out ADK/Sonica they come in about $600-$800 less than a comparable MacBookPro with 3-year Apple Care. The ADK and Sonica include 3 & 2 year warranties respectively, while Apple care is an essential $300 "option".
Most of the people I know who have bought Mac laptops in the last 2 years (including my wife, my boss, and several close friends) have had to make frequent trips to the "Genius Bar" for HD failures, cracked cases, display problems, and sleep/power management issues. These are people who take good care of their stuff and are not power users.
I'm not anti-Mac but I am concerned about whether they'll hold up to gigging. I've also heard that most of the Santa Rosa processor machines released last fall have Lucent/Agere FireWire controllers that don't play well with FW audio interfaces.