Over the last 2 decades i have (ab)used a lot of notebooks of different brands (except Apple, because i always needed windoze compatible hardware) - and Toshiba, HP, Acer and Dell have done the job. My impression is thought that with the drop in hardware prices especially over the last 6 years the hardware and service quality lost a lot too. My last Toshiba notebook started to act funny after 2 years, and Toshiba refused to repair it on warranty (even though i had a 3 year "professional" warranty) because of some scratches on the casing (-> physical damage voids the warranty...). A friends "consumer" Toshiba died just after his 2 year warranty period was over. So one could get the impression that Toshiba has a quality problem nowadays (I never had a problem with my Toshiba notebooks back in the 90ties....).
Well, i heard that all (or at least most) manufacturers.. nowadays try to "void" the warranty and refuse repairs when the case is "visible" damaged (even if that is not related to the hardware problem...) but i was pissed so I got a Dell (Precision ) notebook to replace it - which works fine so far (and i am a "heavy duty" user).
All in all, i dont see any brand that really stands out though (except that i am still pissed with Toshibas service... and the way they responded to my inquiries). They all offer low price "consumer" models and higher priced "professional" models. I'd do the shopping by "budget" (thats what i do with friends that ask for my advice...), and check for "nice price" offers, and look at things like glossy displays (i dont like them much, but some people prefer them...) screen size and resolution etc etc.