I am not real familiar with the NAD line.
I do know the B&W's are well respected and match well with Rotel amps (the two companies are owned by the same conglomerate). B&W's are a bit on the 'bright' side, and Rotel stuff compliments this by being a bit on the 'warm' side.

Cambridge Audio has some great CDp's out now like the 640 v2, 740. The 840 is getting some V good press as it will up-sample any redbook CD to 24 bit. Look here http://www.audioadvisor.com/products.asp?dept=5

And, as always, go listen to everything you can.
Good luck, keep us posted!