Hi, I need atleast these specs. The lighter the better too. 15 would be fine/preferable but I've found some stuff eg. Compaq CQ71-317EA http://h10010.www1.hp.com/wwpc/uk/en/ho/WF25b/321957-321957-3329742-89318-89318-4004498.html which has this resolution, decentish specs..but is a 17incher at...