cadstudio, for adt 3.3, get a laptop (Dell, hp, Compaq...all good) with a p4 and at LEAST 256 ram. I find it just about works with that on a laptop, especially for big 3D jobs...the more ram the better...go for 512mb if you can.
...Adesigner, to install acad 2000 on your XP Laptop, run the...