I want to get into DVD audio and so need to change to a unit with a 6 channel pre in. One of the other requirements I have, though, is to make my system easier for my significant other to use. Could anyone tell me how well the HK's respond to remote commands? My current unit, an Adcom preamp, damn near ignores every other command sent to it and usually will not power up with my macros on my universal remote. It makes it very difficult for others to power my system on. Secondly, is there any real difference between the 320 and 520 other than amps? (I don't care about that, I am going to use an outboard amp anyway....) THANKS!