I currently have the basic Sony 300 cd changer. I have probably another 4 or 500 cd's plus dvd's I'd like to file for convenience. I realize these multi-units don't provide audio/videophile performance, but I don't have that system or room either. I found a place online to get this new Sony ES version for about $550. Is it worth it or am I going to be completely wasting my money? Would the standard, lower cost Sony 400 dvd multi unit be just as good? I don't have any sort of stellar TV yet, but am planning on an Optoma 50" DLP later this year. I'm running a Rotel and Axioms for my audio. Thanks.