I'm interested in some suggestions and an estimate (swag may be better word) for programming a Pronto NG TSU7000 for the following system:

6 zones of A/V (composite) with 4 A-Bus sub-zones (audio only)**this will be controlled via Russound CAV 6.6 and keypads

6 sources for the above system including: 2 HD DirecTivo's (composite out), 1 SD DirecTivo, XM, DVD, CD

2 separate HT zones with separate IR system (2 plasmas served by 4 sources (2 HD Tivo's, DVD, HTPC) via 4x2 component video matrix switch

All of these components will be centrally located in Home Run closet, so IR control will be critical. I plan on having two or three Pronto NG TSU7000's around the house. Where I need help is in basic Pronto design. In other words, would I be best served to have a home page with the various zones, then a source page, then a control page for the source selected? I'm curious how others have tackled this set of requirements. Any input appreciated. HT design can be seen here:

[Link: us.f1.yahoofs.com]