I've been running my Audience 42's with a Plinius 8100 for about three years now and haven't felt the need to upgrade. I listen to some of the same music as you and I haven't been dissappointed yet.

There aren't any on Audiogon at the moment, but I have seen 8100's and some 8200's used for around $1K. These are some of the best integrateds around for under $3K, IMO. Especially for 4 ohm, lowish sensitivity, neutral (or dry/sterile to some) loudspeakers like Totem, Audio Physic, Dynaudio, and planar/ribbon driver speakers. Do some research on Plinius.

Another pairing that you may want to look into is Simaudio. You can find a used I-3 for around $1K as well, and the synergy is supposed to be excellent with Dynaudio. Dynaudio has used Simaudio gear to power some of their audio shows in the past.

I know the Audience 42 is only a $900 speaker, but IMO driving them with NAD or HK is doing them a disservice. You will want to upgrade sooner or later. I did (from HK).

Good luck in your search.