Zero-G is running a Custom Group Buy to celebrate its 20th anniversary. Just browse the Zero-G Download Shop, choose products to a total value of $600.00 (or less), and you will pay only $99.99, that's a discount of over 83%.
The group buy runs until Thursday Sept 30, 2010. At least 50 customers must join the Group by the end of September for the low offer price to apply.
For more info and to apply for the discount, click here.