I am planning a tour next year first stop Carlisle to stay with my first ex's family and then Gairloch to stay with my last ex's parents, over to Lewes to See Ross and Xena and B and then to the Sheland Isles to visit an old friend and then back to Edinburgh - Edinburgh is a brilliant place to go. I'd suggest avoiding August as the prices go sky high for accomodation with it being the Fringe Fest. As for venues - depends on how many of us there are./ The Witchery is awesome - Pavrotti, Madonna etc all being patrons (well when he was alive) but last time I went it worked out at around £100 a head (and I wasnt paying - thank god). I have some favourite restaurants - a really great steak place on Broughton Street, but downside is they all tend to be very small and initimate and would struggle to accomodate more than 8 at a table.
Anyway let it be known I'd be up for it.