Help, Currently I have an Onkyo TX-DS797 that was purchased in October of 2001. We are just starting to learn about all the different features (Dolby, Dolby II, THX Ultra, Etc.)of the current AV receivers. We enjoy, and must have, great sounding music (Rock & New Age) 70% important and movies 30% important. I do not want seperates at this time due to the expense. I am considering the 5800 and 4602. At my local "sound shop" the 5800 is about $3,500 and the 4602 is about $2,100. I like the cleaner power of the Denon at .-05% THD -vs- .08%THD for the Onkyo. I am thinking that for $1,400 less the 4602 would be the best deal as I would need to spend $'s on an upgrade with the 5800. Also will I be able to tell a difference in quality volume with the 4602 at 125 wpc @ .05 THD -vs- the 100wpc @ .08% THD with the onkyo. My "dealer" says you have to go up 1.5 times in wattage to tell a noticable difference. We run very effecient Klipsch speakers RC-7, KLF-20's, RF-3's, RC-3, and KSW-15 (Also soon to get RF-7's). Currently with music we play the volume between 50% and 60% and I do not turn it up higher as I am starting to hear some distortion. Our Speaker cables are Kimber TC4 & TC8. I am working on Kimber KCAG intrconnects. HELP!!!!!! Am I wanting to spend too much money, or will I see (hear) a difference. P.S. Thanks in advance!