It seems that most people use Virtual PC to run cyberboard, are there any other options?

I'm not a mac user, but I as far as I know (and I'm quite versed in this kind of questions) Virtual PC and competing products are the only options on an old PPC Mac. In the future users of the new Intel Macs will probably be able to use Wine (the same way I use Wine on Linux), but that has it's own problems...

Mac users should find this intersting:

http://www.apple.com/macosx/bootcamp/

Dualbooting isn't exactly new (though booting a legacy BIOS OS on a EFI system is somewhat newer).
Of course you can run Windows on an Intel PC (booting was a problem early, but that was solved about a month ago, by third party Open Source Software), but then you are running Windows and not MacOS X.
Most people buying a Mac does it because they don't want Windows. If you boot Windows on your Intel Mac you have just, with an extra cost, replaced Dell (or whoever) with Apple without getting rid of the problem (MS Windows).
Also, as a Linux user who sometime need "real" Windows (lately only for Photoshop/Illustrator work for CivProject) I can say that dual booting generally are WORSE than Virtual PC, as you have to TURN OF your main OS (Linux or MacOS X), and thus all nice background apps like instant messengers and media players, every time you need to launch Windows.
So bootcamp is no solution, only a late delivery of a 40 years old technology that everyone takes for granted. It's only use is if Virtual PC is to expensive (in price or performance) and you don't do anything important with your main OS anyway.