Never ever buy a dell. I made that mistake buying a m1530. Overheated like crazy, turned out there was so much (completley stupid amount) thermal paste applied to gpu and cpu. It was like rubber pads over my cpu it was completley covered. MX-3 lowered temps by 40+oC. I will never buy a dell again. Also they are a complete rip off
I've had two Dell notebooks myself and would happily own another. Didn't have any real problems with either of mine (Inspiron 630m and an M1330).
Not sure how you can consider them a rip off either, you can regularly get a far better spec from them than for the same money elsewhere.
Basically he's had a bad experience with the 1 laptop he's had from Dell, and is tarring the entire brand based on that experience. What he doesn't realise is that 90% of performance orientated laptops suffer from most of the same issues.