Are there any specific models to stay away from? What about the "stackable" components- the 5xxx and 6xxx? And who in the US services B&O?

I'm in love with B&O first and foremost for the visual and interface design. That said, I've never owned anything. I'm interested in a good amp/tuner section, I want to get the most of my vinyl, and I'm interested in a good CD player as well. I have an offer from a friend to sell me a Beomaster 3000. But I really want to know which