Unless you want one of those made-for-gaming laptops from manufacturers like Alienware and Falcon Northwest, I'd definitely recommend a Dell. My family has bought two Dells so far and they work great. We've had no major problems and the performance is good for what we paid. When we have had problems, amazingly enough, each time we've called Dell tech support we've gotten someone competent and they handled our issue properly.
I'd definitely stay away from HP/Compaq laptops, they're just plain crappy.
Unfortunately I don't know of any specific Dells that meet all of your needs (including the price tag), but I'd start by looking here:
http://www1.us.dell.com/content/prod...=19&l=en&s=dhs