Best amp for N803 +htm1? ?

I'm upgrading my HT system, selling CDM9NT/CDMCNT combo for N803/HTM1 combo. Have existing side surrounds but will eventually upgrade to DS7's (DS8 too big). However, I will also be using this system for critical 2 channel music, and I don't think my Pioneer vsx49tx HT rcvr is going to get the best out of these spkrs, although rated at 130wpc @ 8ohms into 7 channels running (not 2 chnl rating, so it's got 7 chnl juice). So the question is, using the pioneer pre outs, whats the best 2 chnl amp to match with these 803's, and should I consider a 3 chnl amp to include the HTM1?
A few other points: I may have an audio cabinet size/height constraint, so i will probably need a slightly low profile chassis (depth/width no problem). I need to move DVD/CD player on top of the pioneer rcvr (is that BAD? Doesn't run too hot, and probably much less so with outboard amp for front 2 or 3 chnls, but will heat from rcvr affect dvd/cd player?). If I do this, I gain a shelf with 6-7 inches (open front/back for ventilation).

So, in short, best 2-3 channel amp at no higher than 6-6.5inches high for N803/HTM1. Can be used if better value exists, as it usually does.
Thanks for your help