For anyone who is interested, I posted this same question in multiple forums looking for lots of suggestions. If you want to read the details look in the forums for Hardware/Technical, Adobe Photoshop, Painter, DAZ-Studio, Bryce, Vue and Poser. Thanx everyone for your great responses. This has been very helpful. There are varying preferences (as would be expected) but you all have given me much information and food-for-thought to help me make my selection. In a nutshell the consensus seems to be as follows: A desktop unit will be faster, better display, and cost less than a laptop. In that vein an Athlon AMD64 processor would be the top choice. Lotsa RAM for sure (1GB or better). DirectX 9+ and OpenGL 2+ is desirable. 256MB video memory. A laptop will cost more, be a bit less powerful and the display won't have the contrast range of a CRT. Having dual processors will compensate a lot by using one for the rendering and the other one for other tasks. As for processors: some said they are happy with Centrino. Andytw suggested the new Intel "Core" chips which replace Centrino will give similar performance to an AMD64. Actually using AMD chips will run hotter and battery life will be shorter. From what you tell me, in either case, COOLING is of EXTREME importance or whatever processor you have will not last so long. Now it comes down to this: I can spend less and get a machine that is rooted on one location, or I can spend more and get a machine that performs a bit slower and be able to take it with me from place to place. Still thinking on that. Will do some shopping and see what I can get. (Hardly anyone suggested prices! but I do know I won't be going the route of the $3000+ Alienware laptop!)