I personally think you pay too much of a premium for new NAD & Cambridge Audio. I'd steer more towards a used Anthem.
I did a shoot out of the AVM30 & D1 processors vs a Krell Showcase processors of that era and newer Marantz's (SR5005 & AV7005) and found that just on sound quality the Anthems did very well. If you don't need / want automated room correction, HDMI, or DTS Master Audio & DD True HD, the AVM 30 & 20 are the best buys. The former can be found at or under $400 if you're patient on Ebay, the AVM 20 more like $250. The lack of Master Audio & True HD are the only significant losses in my book, but if you have a blu ray player w/ multichannel analog out, you can use that. Be aware though that both these have only 6 channel analog input (5 + sub), so if you want to do 7.1 channel analog input, look elsewhere. Strangely they do have 7.1. channel analog output......
Of course these anthems are processor only, though high quality multi channel amps are cheap. So much so that you may save vs getting an Anthem Receiver.
Honestly though, the Marantz mass market stuff (receivers) was not that far off from the Anthems - but the Anthems definitely had the warmer thicker sound that some may find more appealing.
Other brands worth considering in a used receiver are Arcam & Integra. Arcam may have more the minimalist look you're looking for, Integra perhaps less so in functionality.