Hey Ray,
What kind of CD player do you have? And please feel free to ignore the "buy this, buy that" and "if you don't like it sale it" crowd around here, as I feel you're the kind of guy that wants to do a decent upgrade and then enjoy it for a while, so take your time and find what you want, and that meets your listening expectations.
Anyway, first step if it was me, and since I now know you're a FM listener, is figuring out do you go to a Integrated Amp + Tuner combination, or do you go to another Receiver? Now I guessing you're the type of a person who believes in the K.I.S.S. approach "which is "keep it simple", as long as it sounds good. If that's the case, then I might go with a well taken care of tube based vintage Receiver such as a 60/70s era Receiver such as Fisher, McIntosh or Marantz, especially if the owners has had it serviced recently and it meets orginal specs. You know a lot of those old receivers will still beat "the pants off " of modern day receivers in both sound and overall performance. Btw, I love good vintage gear, and "down the road" I might pick up "am oldie, but goodie" receiver.
If you browse over to the sales pages you can find several examples at a fairly reasonable price. After that I would live with what I got for a while before taking the next step which may be replacing the speakers (although your B&Ws still have a good reputation, of course, if you like B&Ws you might want to check out their new 600 series, lots of good comments about them) or maybe even upgrading your CD player (again applying the "weakest link" principal). After you got that all in plece, you might then want to play around with upgrading your IC's or speakers cables. Once again, don't fall for the over-expensive hype, as there are many quality manufactors who make cables at a ressonable and affordable price. Btw, where are you located? Perhaps some of us, might be able to help you find a dealer somewhere near "your neck of the woods".