Not the DV332...
I can't recommend the DV332.
The very low impedence Denons (25 ohms) don't seem to mate well with the DV332. The mids/upper mids seem to have a slightly rough / hard sound. The rest of the sound is great - bass pretty tight, highs clear and detailed, great soundstage, etc.
Skylab reported to me that the DV337 sounds great with the D5000s.
And... I would guess the new Musical Fidelity XCAN v8, or the XCAN v3, would also, though they are tube hybrid amps. The XCAN v3 sounds good with the Grados (32 ohms).
The Singlepowers likely sound good with the Denons - they seem to drive the Grados well.
And the MAD EAR+ HD amps also likely sound good with them, since they are reportedly great with Grados.