Even though I would never want a Mac because my 3D animation software (Softimage|XSI) is not supported by Mac yet, I still think you should give the Macs a chance. At my job we have a nice $16,000 (This includes software, the ENTIRE Adobe software collection!!!) It can do damn near anything I want it to do. If the system were to be more upgrade-friendly and wallet-friendly, I wouldn't mind getting one because there is a Windows emulator that lets you use Windows on a Mac so you can use Windows for gaming. Also, OSXs memory management is superior to that of Windows (which can slow down if you have too much unused RAM). Also, a final note: OSX is far more beautiful than Windows XP (Windows Vista is a different story). Sure, you can make a PC look exactly like OSX but it would have the "feel" of OSX because you have to use multiple background programs to simulate OSX on Windows which slows down performance.
Also if you actually look on the Apple website, they have a new mouse that is touch sensitive (no buttons) that has a right, middle, and left mouse "button". The only physical buttons are the two side buttons for various tasks.