These steps will let you setup a scenario where you can allow users to download a low resolution version of an image for free, but sell the high resolution file for any price you want.
With the Digital Downloads add-on, you can allow users to purchase all the digital negatives for an entire gallery as a single product.
Allow users to get a % discount on all other products on your site when they add a package to cart first.
Price tiers let you give discounts to clients when they purchase set quantities of a product.
Sunshine Photo Cart Pro has the ability to let you sell all the digital negative images from a gallery as a single product.
You can control the order in which your product categories appear to clients in the Add to Cart form.
A package is the selling of multiple products as a single product. For example, you could sell an 8×10 print, 20×30 canvas and a digital download all for a single price (usually discounted from what it would be to buy the items individually).
Price levels let you sell your products at different prices for each gallery. Charge your wedding clients more for the same 8×10 as your portrait clients!