I'm looking for an AV amp that sounds great in regular 2 ch stereo. Budget is around £600, but could go higher if it makes a real difference. Local hi fi specialist has suggested Arcam 300, or HK330 for a lower cost alternative. Another dealer said Marantz was much better for music than HK. To save me the time of testing so many products, I'd appreciate some pointers on what is likely to be best on music and at least reasonable on movies. I'd prefer to stay with same brand DVD player (eg. Arcam 79 with AVR 300). Any thoughts on NAD, Denon, Pioneer, Denon, Yamaha in this price range?