WooThemes - Chained Products v1.3.7.4 | 97,9 MB
Easily create and sell product combos. Everyone loves combo packs (and they sell really well!!). This plugin makes it super easy to create and configure them. Chained products should be used if you want to sell a single product, and gift/give access to other products after purchase. Simply create a new product for the combo, and chainA? as many products as you want with it. Give the combo product a price and that's the price people pay for the whole deal. Chained products are automatically added to the order when payment is completed. (and if they refund / cancel the order, they will be automatically removed as well!!)
DEMO:
http://www.woothemes.com/products/chained-products/