Price: $1950 - $1990
Dell needs to be very afraid. This machine can blow any laptop I have tried out of the water with no problem. I cannot believe how fast it is. The thing can boot from either Mac OS X or Windows XP (and soon various UNIX). Of course, Mac OS X is far superior to any Microsoft OS, but if you need it you can still boot from it. Also, using cheap third party software, you can now run Windows applications concurrently while in Mac OS X, and very soon will be able to run UNIX the same way. Remember, there are tens of thousands of virus and spyware problems for Microsoft systems and NONE for Mac machines. Even if a few show up in the future, it is not even comparable to any Microsoft system.
The wireless Airport Extreme is tremendously fast and always very solid. In fact, as usual Apple has all the "extras" already built in compared to the normal PC laptop. In the end, the total cost of ownership is much lower than with other laptops. Also, the quality is far above what you may be used to finding with Dell, etc. Further, if you do need service, Apple is the world leader.
This machine is so far advanced compared to standard PC laptops that it shouldn't even be in the same category.
The only drawback I can see is that Apple and the software developers are moving so fast that you can hardly keep up with them. Microsoft is completely stuck in the mire of "Vista," also known as XP Service Pack 3. Of course, there are lots of IT people who are now scared to death of loosing their jobs because if you are using Apple computers, you don't need their "services."