Alright this might sound stupid but, when is it important/nessacary to buy a high powered graphics card. I'm still contemplating on buying a new laptop. There are three options 64MB, 128MB, and 256MB. Which do i choose and why? I typically use my machine for programming, but at work I use a CAD program for drawing kitchen cabinets. So should I upgrade to a better card or just go with th 64MB?

Oh and by the way I honestly have never done any gaming on my pc or do I intend to.

Please someone point me in the correct direction!!!