My four year old Macbook Pro is still much faster than my parents' one year old desktop pc, despite the fact that their computer has basically nothing stored on it and I am running some pretty hefty programs like Adobe CS5 and Alias Automotive.
There are Windows-based laptops out there that cost just as much FYI (Alienware comes to mind). I don't get into the whole "mac or windows sucks and the other one completely rules" arguments because it comes down to your application and preferences to decide which OS is better for you, but from personal experience unless you are a programmer or have business needs I think the mac is a vastly better system, especially out of the box. I will say that mac needs to upgrade their video cards and RAM in some of their most basic packages, though.
However, to all the guys on here that say "Mac sucks," ....it's a little amusing, since there's a very good chance that whatever car you are driving was created and developed by that company's design studio team partially on a mac.
So my 03 Cobra was designed on a Mac? I thought it was designed in clay by hand....?