but whats the virtal windows thing ?
On Intel Macs, you can run Windows virtually via Parallels or VMWare. Basically you have a Window on your Mac (if not set for full screen) that is a PC for all practical purposes. The speed is decent but not good for gaming.
Before the Intel Macs, Connectix, then Microsoft, created Virtual PC which is the same but for PPC platforms such as your Cube. I run it on my PB15.
Unfortunately, while Parallels and VMWare are fast due to the Intel chip set on the Intel Macs, VPC is much slower since it is running on a PPC chip set.
I use VPC for a couple of programs that I still use that have limited graphics and processor needs. With VPC you will wait, and wait, and wait, for it to do it's thing. But for those of us using PPC based Macs and need to run a Windows app or two, it provides a limited solution.