A Mac doesn't need an Intel processor to run Parallels, it's an emulation layer which will run on both PowerPC chips AND Intel chips.
This isn't a very elegant solution though, as you can't realistically run Parallels all the time because it uses a pretty large amount of system resources.
To call up link products on a Mac, the only thing I can think of doing is getting an EyeTV, connecting that to your Mac, and get a BeoLink Video terminal and connecting that to your EyeTV.
You can't connect a BeoPort to two machines at once as far as I'm aware though