Ditto on the CAP-100 recommendation. I sold mine last year for $750, though, so the one currently listed seemed priced a little high, even from orig. owner.
I've owned several Classe pieces, incl. more expensive separates. By itself, the 100 is a good value but not a giant-killer. The amp section is far superior to the preamp section; using a separate preamp -- a CJ tube-pre, for example -- with the 100's fine amp section takes the CAP-100 into a higher realm.