the big thing i noticed on my laptop (P4) was dramatically increased heat during certain types of actions (rendering, some high detail stuff) which a bit of tinkering got around (replaced factory thermal compound, modded fans a bit, added filters to keep heat sinks from clogging) of couse this means that the laptop was not designed to be run at peak processor and vid card for extended peroids, but it's nothign one can't work around.
incidentally, i'm a BIG fan of acer laptops, especially for the onboard numberpad and ~3:4 screen instead of a widescreen means a LOT more ease of drafting. the hardware is well laid out, and easy to mod as well as replace/repair/upgrade, and can typically be done by a level 1 geek rather than it needing to be sent to a factory if it's out of warranty.
