I am starting an editing service and I need the ability to charge a one-time variable fee for my services, depending upon the manuscript. The client would need to be able to enter my payment fee, using Pay Pal. Is there a way to set up a product on e-junkie that allows the customer to enter a figure? He could then pay via Pay Pal or credit card.

I could use Pay Pal directly, but then the client has to sign up and it's a pain in the ass. If I can use e-junkie the process is automated, my clients are protected, and I don't have to worry about anything.