Depending on your trading platform, an Apple Macbook Pro with a SSD drive (or a Macbook Air) is also a good buy.

If you plan on using a Windows-based trading platform, there's always VMWare Fusion, but some might be against that idea due to latency issues (if any).

I would vote for the macbook pro.

There is simply no better laptop made on this planet. It has a unibody (1 block of aluminium)

Apple - MacBook Pro - Meet the MacBook Pro laptop family.

You can boot in BOOTCAMP and you are running windows faster on a macbook than you would on a windows laptop.

That was just funny : MacBook Pro Is the Fastest Windows Vista Notebook