So let me see if I understand this.

My older systems can do Pro-Logic through the stereo rca connector if game is coded for it.

The Wii can do Pro-Logic II through the stereo rca connector if my receiver can handle it (I believe it can).

The 360 can do Digital through an optical cable.

For the 360, can I do both the optical and HDMI? Currently I use an HDMI cable into the TV, but my receiver doesn't have an HDMI port. It does have an optical port though. Can I have the HDMI cable for video going into my TV and the optical cable (via the dongle) going into my receiver?

Thanks for all the help so far!

Tempest