Office Separates System????

I've never had separates before but I just upgraded my home theater speakers such that a pair of vienna acoustic Haydns ended up in my office. I'm thinking it might be fun to set up my office system with separates.

I don't need a ton of power because it will mostly be used at background music level. I am totally amenable (in fact probably prefer) to used equipment and I don't want to spend a lot of money (I'm not going to suggest a budget but if you could give me a sense of how much what you are suggesting would cost that would be great).

I think I will only be playing CDs and satellite radio (probably don't need a tuner -- hard to get am & fm but XM satellite works great (although not overly impressed with sound quality)).

I'd love to hear your suggestions.