Consumer vs Commerical Laptops...

you want a car that lasts? look what police and cab drivers are driving.
you want laptop that lasts? get what professionals use (a workhorse).

so far i've changed about 20 laptops (most of them used for work, we get the top line and change them every 18-24 months). in the last 8 years i only used business models (D800 series, M4300, M4400). in *MY* experience, consumer products are plastic toys (laptops sold though big chains like bestbuy, tiger etc.).
the last HP (currently used by my wife) is perfect example. 8 months ago $750 out of window, twice sent back to replace motherboard, thing is burning on your lap (no wonder battery can't last), no dedicated video memory or accelerator. i bet that used 3-year old D620 (sold for $300, C2D, 2.xGHz 2GB RAM, video card, DVDRW) and fitted with new battery, HDD and keyboard is not just cheaper but it will will work better and walk all over much newer HP Pavilion. btw. just look at the rating of that hp dock.