I have a Technics SA-DX750 that has 100 Watts per channel stereo (2 channels) or 80 Watts per channel surround 5 channels. With built-in 5.1-channel Dolby Digital. 3 digital inputs (2 optical, 1 coaxial) with Output for subwoofer. I got about a year ago. A friend of mine works at a local electronic store and told me he can give me a deal on a Panasonic SA-HE200 for $249.99. I have done some research but I am still not sure if the Panasonic SA-HE200 is that much better than my Technics SA-DX750? So should I buy the Panasonic SA-HE 200 or keep my Technics? I do not much about receivers so any suggestion would be appreciated. Thank you.