I don't need a laptop, as I already have my Lenovo, but I want to get rid of conventional desktop systems. Plus, I liek the idea of being able to bring my laptop with me (on a trip or something) to download and work with the photos on the fly.
That said, I am looking into an alternative program: LightZone. I'll see how it stacks up with lightroom, and if it is comparable, then I won't need a second laptop.
Fine to mee, is works better than my 2.6Ghz Athlon XP with 1GB ram. Lightroom is sometimes a bit painful to use, and I'm not even talking any major editing functions here, just basic usage.