Wine-like software for Mac?

Ok, well I've hated my PC for a long time, because it's Windows, the only reason I stay with it, is because of Windows support for most applications. I love Linux, but would like a powerful computer like a G5. On Linux there is a program called Wine (http://www.winehq.com) which is basically a compatibility layer for Windows programs, letting them run on Linux. My question is, is there any program that runs a Windows compatibility layer on Mac OS X? Like, a Wine for Mac kind of program?

Thanks in advance.

VirtualPC

Wow thats great news. Here I come G5!

You should probably know that virtual PC is quite a bit slower than wine as it also has to emulate a different processor type, as well as the OS.
New intelmacs will have more wine-like capabilities.

And you could always install a linux distro on another hard drive and use Wine. Other than that, there is a version of Wine in the works for OSX, but it's in the early stages yet. You can get the "developer preview"

http://darwine.opendarwin.org/

I'm pretty sure Wine under ppc linux would be equally as slow, as you'd again have to emulate the processor as well as the OS.

there's a good chance you'll find mac\open source apps that do what your windows apps do. alot of which are free.

ditch the wine thing