For those of you in the market for a new notebook computer, or who are (like me) geeky enough to think this is a cool topic to discuss, CNET TV has posted a great video review pairing the two current top contenders: Lenovo's ThinkPad X300 vs Apple's MacBook Air.
In full disclosure, I must confess that my wife works in the legal department of Lenovo. I've been an Apple loyalist since 1988, though, so I guess it all evens out.
Here is a link to the video review.