Reference Level Recording of Classical on CD's?

Hello, I just set up a pretty good digital system. Now I am looking for some good quality CD's to enjoy. I am into classical, all difference styles and periods, from solo piano, chamber to full orchestral stuff. Please make some recomandations.

By the way, I stumbled upon Richard Goode's Beethoven sonata set, beautiful playing to go with excellent recording. Check it out if you haven't.