New Processor - HDMI Switching???

I am switching from a B & K 507 receiver to seperates in my home theater system. I just picked up an Arcam FMJ P7 amplifier, and have an Arcam FMJ AV-9 processor on order. My other gear includes:

Pioneer Elite 79AVi DVD Player
Sony Blu Ray Player
All Paradigm Speakers - Studio 100's
Velodyne SPL 12 Sub
Sony 1080P DLP Monitor

This will be my first experience utilizing a processor with HDMI switching capabilities. I understand the Arcam unit is of high quality and has good audio/video processors. If I route all of my video through the Arcam processor via HDMI (Pioneer DVD and Sony Blu Ray), does it utilize the Arcam processors and supercede the other units and televisions upconversion and processing? If this is the case will I get maximum picture quality and sound by doing this? Any other information to explain this process would be much appreciated. How do I get the best results from this setup?

I have always routed my players directly to the television via HDMI.

Any recommendations on high quality, moderate cost HDMI cables for the application?

Thanks for the input.