Which multichannel amp to buy


I recently upgraded my HT fronts to paradigm sig 4's and c3. Now i want to get a more powerful amp to better drive these speakers. Currently i run the anthem avm30/pva 7 combo in a 5.1 system. I am considering the following amps: NAD M25, Parasound A51 or 5250, Cary cinema5 or sunfire TGA 5400. Any opinions? I am trying to keep the cost around 3 grand.
docrobbi
Have you considered just adding a 2 channel for the fronts or do you feel you need more power for all 5 channels. Since you have 5.1 and a 7 channel amp have you bi-amped?
If you are looking for more power consider a McIntosh 205 or a Ayre amp as well.
Gemstone Blue Diamond... first as already mentioned revisit whether you even need another amp.