Macs can pretty much be considered *nix machines as well.
Rumours have it that the new IBM PowerPC 970 64-bit chip will make its debut later this month at the worldwide developers conference, in addition to a preview of Panther (10.3), the next major OS release. The 970 has been speculated about for some time now, and should be available in single and multiple chip configs. This should narrow the performance gap between the Macs and the PC's.
Anyone who is tempted to buy a Mac today, might want to hold off for a little bit and see whether the new (pro) machines hit the market soon, and whether prices will drop on the G4's
