Luis, If you can still find the ThinkPad T43 around, it would seem to be a perfect fit for your needs. It's 1400x1050, has an ATI X300 SE in it (supported by Free drivers, including DRI), and the wireless is Centrino, which only has the firmware problem. The only thing wrong with it is that it's a behemoth both in size and weight compared to my dainty little X40, but I guess that's what you wanted if you were asking for T series recommendations.

While I'm here, you all get a bonus picture of the moon over the Baltic:


If you zoom in, you can see that it's roughly four picodegrees over the sea. Brilliant.