Re: Extensions and Plug-Ins and the "Cart"
How about a "Wish List" so that people can choose any number they would like and then buy them or download them at another time with out needing to pick and choose them each time they come back for a purchase?
Also I propose a product filter like a left side menu where you pick (from a drop-down list) the manufacturer, the price range, a product color (for example) etc.. (and from the administration to be possible to add these filters).