So just for clarification. If one were to select
graphics card 128MB, , price +30
Would the other item line(s) update to:
graphics card 64MB, default, price -30 or would the item lines stay static and not reflect the current item selected.
This is how I see it.
The category would define the title, how the products are displayed, images , quantity box style etc.
The products would have options for default product as well as the ability to have a none or null defined. How the price is to be calculated e.g. use full price or a price modifier.
e.g.
Graphics Card
graphics card 64MB, default, price 0
graphics card 128MB, , price +30
graphics card 256MB,, price (actual-default)
Extra Drives
none, default
dvd rom,,(actual price)
dvd rw,,(actual price)