The NAD 272 used with your HK receiver would be a good (and affordable) way to go, but why not just ditch the HK and go the integrated route if you're sticking with 2 channel? The preamp in the HK would likely end up being your weakest link. The NAD C372 (150W) is a great buy, and I'm using one happily in a system with speakers that also need decent current and sit at about the same price point in proportion (Vandersteen 2CE Sig IIs). I loved the speakers and made a similar choice to invest in them and use a high-value amp for at least the time being. And I'm happy enough with the NAD that I'm in no hurry to change a thing. I've owned three other cheaper NAD amps over time and have always been happy with their quality, and the C372 is a leap above the lower models in sound.
This is an aside, but while you're deciding on a DVD/Blu-Ray player, pick up an old Sony Playstation 1 (the SCPH-1001 model) for all those CDs in your collection. It's not the most attractive solution, but it does sound great. I bought one as a place-holder, and it's fantastic. You can read a review on 6moons and a lot of comments in threads here. Plus, at $40 or less on e-bay, you'd be able to put more $$$ right now into music and the other gear.
This is an aside, but while you're deciding on a DVD/Blu-Ray player, pick up an old Sony Playstation 1 (the SCPH-1001 model) for all those CDs in your collection. It's not the most attractive solution, but it does sound great. I bought one as a place-holder, and it's fantastic. You can read a review on 6moons and a lot of comments in threads here. Plus, at $40 or less on e-bay, you'd be able to put more $$$ right now into music and the other gear.