I've got one of these
And it's bloody awesome. I was originally looking at the 15" Pro model, but then the 13" came out- more portable, and cheap enough that I could afford to buy an external (22") monitor with the money I saved. So, even better on the desk and even better on the road. Thumbs up.
Also, I bought the base model (2GB RAM, 160GB HDD) then upgraded them to 4GB and 500GB 7200rpm with stuff I bought separately- far, far cheaper and really not very difficult to do once you get the right ruddy screwdriver to get into the thing.
Edward above is right- it comes with a mini Display Port, so you need an adapter to connect to DVI. But the old ones needed a mini-DVI to DVI adapter anyway, I've still never seen a monitor with an actual mini-DVI connection...