I agree that a dislike of newer entertainment is a silly reason to avoid Bluray (a dislike I share), especially when lots of older stuff is available on BD.I think all you'd need is the Blu-ray device and an HDMI cable connecting it to your receiver. At least that's how my "theater" is set up: TV, DVR box, PS3 all connected to 5/1 receiver w/ HDMI cables. You'd just need to make sure your receiver has enough HDMI inputs.
But adding BD to an already existing system requires that all devices in the chain are HDCP compliant, for a lot of people this means replacing fully capable TVs and receivers. I went through this to put a BD drive in my computer, I needed a new monitor and video card to make it work.