Compaq Evo n1020v - Hot stuff!
I see a lot of these units coming through HP's secondary channel here at work .
The majority are Intel Pentium 4 2.4GHz models. (Not the Pentium 4-M chips but the standard Pentium 4 desktop chips.)
Is that an issue?
The Pentium 4 gets really hot really fast. In fact the cooling fan comes on within about 5 minutes of turning the notebook on. The fan sounds like a regular desktop cooling fan too, it's REALLY LOUD! Added to that the heatsink required to cool such a hot chip is substancial. As a result the notebook is rather large and quite heavy(3.5KG). Also since the CPU uses a lot of power the battery needs to be a lot bigger and heavier in order for the notebook to have half decent battery life.
The Compaq Evo n1020v and other notebooks based on desktop chips should not be thought of as a laptops. They are portable desktops / desktop replacements.
If you're looking for a real laptop then choose a unit with either an Intel Pentium-M or an AMD Turion 64 processor.
----How did the Pentium 4 end up in notebooks?----
The heat problem with the Pentium 4 meant that it took Intel sometime to get the Pentium 4 tweaked for mobile use. When the Pentium 4-M did finally hit it ran at rather slow speeds (1.4GHz - 2GHz), which meant very lack luster performance, since the Pentium 4 requires high clock speeds to clear it's long pipelines.
The whole Pentium 4 mobile muddle opened the door for the Pentium-III design to make a return as the Pentium-M seen in Intel's Centrino technology.