I don't know if Dell are the same overseas are they are in Australia, but here, Dell's suck. Waaaaaaaaaaaaaaaaaaaaaaaay too over-priced, held up with crap (usually the equivelant of Compaq crap) and usually, you can't fix them yourself, unless you have some kind of degree in fuzzy logic.
I reckon desktop's are better than notebooks too. I'd highly recommend revising exactly why you want a notebook and seeing if it is really worth it too.