JServ, how much are you willing to spend? If you don't mind giving us a budget, we would love to help you spend your money. I don't think your hk 125 has pre-outs for an external amp, so a new reciever would seem necessary.

*Michael*
AV123 Refugee - X-LS Encore, X-Voce, X-Omnis, Elt-Dpa's
Denon AVR-591
Magnavox NB500MGX BDP