Here's a Sony Vaio:
Core Duo, integrated graphics (better battery life), 100GB HDD, 1GB of RAM, and only 6.2lbs.
My sister (Sophomore @ college) just got one of these, except with a Pentium M 1.73GHz, for only $999 after rebate. I thought it was nice. It's lightweight, sexy, and still powerful. If I was buying, I'd get one of these, and this is coming from a Thinkpad owner. It doesn't flex much and it DOES run cool....