The last post was pretty complete, so I'll just note here that I also was able to create a new product type by a combination of duplicating files, creating new tables and hacking a couple of existing tables. I also added two new category/pick lists (like the music genre) for my product type. Unfortunately I did not keep extensive notes of what I did

However, if you have specific questions about something that isn't working post it here or Personal Message me and I'll try and answer.

I was also able to create the display templates for my product type and add display controls to the store configuration to show/not show my new fields.

Then I had to hack the index page to display my fields in the listing and also hack the search code to include them in search. Once I have the whole thing the way I want it I might figure out how to abstract the addition of new search fields and submit it to the zen guys... but I have alot going on right now :)

Mike