I would caution against the NAD. It is a good sounding and punchy unit, but the quality of the pre-amp section is questionable... on mine, the volume control crackled after just a few weeks, one rca input priduced distortion after a year, and now the entire source selector is shorted so it is unusable after 5 years. I also purchased a Marantz pm8004 at a low street price six years ago, and it's been running 24/7 since then it is like new. I also have a 21 years old Yamaha integrated, and it is also working like new. The yam retailed for the price of the nad; the Marantz was twice the price of the nad, and both units are 3x the weigh of the nad. Quality of the nad components are obviously not even conparable.
I would look into either Marantz or the new Yamaha line if I were you.
I would look into either Marantz or the new Yamaha line if I were you.