What I want:
When a customer buy for a certain amount fx. 10 $, he can choose between 3 free products.
A solution could be if the add-to-basket button under free products is hidden until the purchase amount is 10 $.
Another solution could be that the free products are displayed in the checkout page.
Take a look at this website:
www.bodybuilding.com/store/freegift.htm
You can see it says: FREE GIFT OPTIONS FOR ORDERS OVER $75.00
Examples:
I have "bought" for $40.55
Order Subtotal: CA$40.55
You're so close to a FREE GIFT!
Your SUBTOTAL is under CA$81.00 so you haven't earned a free gift yet! To choose a free gift, add CA$40.00 or more to your order.
View Free Gift Selection
I have "bought" for $81.10
CA$81.10
You're so close to a BETTER GIFT!
Congratulations! Your SUBTOTAL is over CA$81.00 - you've earned a free gift! Choose your gift on the next checkout page. If you order over CA$107.00, even MORE free gift choices are available!
View Free Gift Selection
It would be so nice if this was possible, because it can be used in stead of free shipping, which is more expensive to use.