ASUS support may well be questionable, but IÂ´m also not aware of any that shine either. I myself have a 14" Dell...2 years old now, and no complaints so far about the machine itself, therefore have not had the need to test their customer support.
As far as reliability goes, my comments about ASUS and Toshiba are based on comments by a couple of independent IT buddies, and a recent article which clearly singled these two out as being the least likely to suffer from any sort of problem. (IÂ´ll try to track down the link...post it later).
A netbook option, as I mentioned, is worth considering if youÂ´re after serious portability. I carry one me with almost every day...but then I ride a mountainbike 50 to 100km/day on and off-road at an average of 30kmh. I know loads of students who also like them precisely because they are small, as well as relatively cheap. Sure, the small screen is irritating at times, but so are mothers-in law, the wet spot, peanut butter that sticks to the roof of your mouth, and so on.