Welcome to the WONDERFULL(SARCASTICALLY) digital age!Where computers are outdated in 3 months and now even home theatre processors in 6 months-or so it now seems.What's next,home control or appliances?Anyways,my opinion is, unless you can afford the likes of a Lexicon or equivelent w/upgradability,who cares.If you don't mind the additional components on your rack,the advice from Beoskerp above will work just as well,or even modules from a music store(electronic instruments) such as digital delay,simulated stereo(from mono for pro-logic rear),frequency crossovers,even the good ol quad stereo surround(from "stereo" for DD and DTS rear).Toys,toys,and more toys.The advice from Listen above is a DEFINITE starting point.