You got me excited but both of those options have fees. Plasso has a stripe fee and Dwolla has a monthly fee along with possible transaction fees. When I am only doing 1-2 large transactions a month, neither of these options make sense. What I want is the ability to have the client manage a hosting plan themselves without having to shake them down for money. Why would you want extra steps?
As far as taking payments, I'm still looking for something that is completely free like quickpay but doesn't require such a hassle for sign up.