I'm wondering what everyone uses to power their 2-tier affiliate programs. Most of my 1-tier stuff runs through Clickbank or Paypal, neither of which will work for a 2-tier. I'm putting things into place to launch a bigger product to IM'ers and had a good look around early this week, and it seems like JV Manager + 2Checkout are a good solution to powering the 2-tier program.

What are everyone else's experience?

-Michelle