Best payment Processor with affiliate network for digital product subscriptions?

Hey everyone,

I am currently exploring the best affiliate program to register with to allow affiliates to resell our products. We recently launched a new system allowing users to get their own flash website with their own domain name and 5 email addresses for £20/month, they can customise the site in a number of different ways and update it whenever they want. We are currently using Google checkout to process payments with no affiliate system.

I have checked out Google Affiliate Network and Commission Junction but they both charge massive fees. In one sense I would quite like to have one that does the payment processing as well, as then all of the affiliate payments are taken out by them automatically before we get paid. As a result I am looking at ClickBank, which would do what we need, albeit at quite a high per transaction rate.

I wanted to see if anyone has had much success using ClickBank's affiliate network to sell their products or else if there were any others (with or without integrated payment gateways) that were worth checking out? I really want to find one that will send sales as otherwise we may as well use a cheaper gateway and write our own affiliate system for use by affiliates we promote to directly.

Thanks so much for any input anyone can give,

Dave