I am having BB hook up my new system tomorrow and I had the dish people out today to get HD set-up. My question is the BB people had me buy some $100 monster cables [HDMI] for the dish and the Blu-Ray, and then another from Receiver to TV.
My question is the dish people and the Blu-ray came with HDMI cables and will I see the difference using the monster cables?
Any help will be appreciated as I am totally out of my comfort zone.

The TV is a 52" KDL-XBR3 and the receiver is a Sony STR DA 5200ES.

Thanks