TV : Hitachi 51s500
Receiver : Harmon Kardon AV330
Center Channel : Polk CSi-5
Front and Read Surrounds : Polk RTi-8
Sub : HSU Research STF-2
I use my XBOX 360 as my primary DVD player right now, will probably buy the HD-DVD add-on when it's available as well.
Regarding reference volume levels, I too would like to know what 0.00 on your receiver actually translates to in Db's on an analog meter (the RS one is fine, its what is recommended for calibrating HT's). I have my receiver calibrated to DD reference levels when its at - 20db on the volume...that settles it around 85db with 105-110db peaks during intense scenes. For reference, here is a little chart relating DB to every day events
180 Krakatoa volcano explosion at 100 miles (160 km) in air [1]
160 M1 Garand being fired at 1 meter (3 ft)
150 Jet engine at 30 m (100 ft)
140 Low Caliber Rifle being fired at 1 m (3 ft)
130 Threshold of pain; civil defense siren at 100 ft (30 m)
120 Train horn at 1 m (3 ft)
110 Accelerating motorcycle at 5 m (16 ft) ; chainsaw at 1 m (3 ft)
100 Jackhammer at 2 m (7 ft); inside disco
90 Loud factory, heavy truck at 1 m (3 ft)
80 Vacuum cleaner at 1 m (3 ft), curbside of busy street
70 Busy traffic at 5 m (16 ft)
60 Office or restaurant inside
50 Quiet restaurant inside
Having some decent quality components makes going to the regular theater an expendable experience...barring the really good blockbuster movie releases