I have been looking at the M170 myself, actually. The only thing that concerns me is that the processor is only around, I think, 2.24 Ghz or thereabouts. I don't know much about computers, but that really doesn't sound like a lot to me.

On a related note: Can anyone tell me how to "grade" new dual-core processors versus single processors? I know that a dual-core 1.5 Ghz does not equal 3.0 Ghz total power (it's less) but I don't really know how dual-core stacks up against a single core.

For example, the Toshiba in the link will have a dual-core 1.83 Ghz processor. I would think that it would be better than the single core 2.24 Ghz, but I really don't know.