All of you sounds SO full of crap.
First, all 64 bit cpus are more than powerful enough.
I can't really tell the performance differences between an Apple G5, an i3, or my AMD cpus - and I don't need 8 cores or an i7.
Second, desktops remain a completely viable form factor - heck I'm pricing new components right now.
Third, screw the minor differences, all modern OS' are virtually interchangeable.
Fourth - I don't CARE if you like Apple products, they cost too much without offering enough additional value.
Fifth (and finally) - If you don't think our current PPC offerings are powerful enough, you have tried an NG OS on an X1000 or G5.