Welcome, X!
I was gonna say speakers, but then checked on the 8200s and see they are pretty substantial gear! ($10k+ retail)
I also see the 8200 has a really hefty sub amp included in the package as well. Gosh, unless you were eager to upgrade your receiver and dvd player, I wouldn't change a thing.
I owned a Pioneer 45A and it was a nice machine. The 59 is a few steps up and is an excellent unit.
If you are dead set on making a purchase, buy an external amp for your fronts and center. Go 200wpc + and you will hear a noticeable change. Some here would wonder if your receiver has the latest hdmi but that is just bells and whistles imho. Also, some ideas on how your room is set up, and what room treatments, if any you have done...
Pictures are always nice!
