In my case I'd like to get the AV Receiver/Processor out of the mix entirely - the 105 is allowing me to do that.
HDMI from my cable box goes into the HDMI input on the back of the 105.
My old processor (Arcam AVP700) was nice sonically but didn't do any upscaling of video - it just had HDMI switching/passthrough capabilites.
To play records I might shim an analog pre-amp with Hometheatre passthrough into the mix at some point.
Thanks Zooming ...i guess with a limited set of HDMI sources, you can get away from using your Arcam processor and use the 105 entirely!