Have you thought of Rapbank ? Rob Toth recommends it and seems to work with them very successfully - as you can read on his site here. They pay commissions instantly and have a very effective backoffice management system to manage your affiliates. BTW, congrats for your site, Levi, it looks very useful, too! Good luck for your campaigns!
I think that Cickbank is great to get a Army of affiliates but security for your product is very low on their network and people can easily find ways to get your products for free.
Can you offer less than 50% to affiliates in ClickBank (since you are planning to offer 5-10% commissions)? because I think you can't, but I maybe wrong. If I am right, then clickbank goes out of the options.
there is a lot of competition at clickbank and CJ. We should try the other new networks mentioned in above posts.
I really think CJ is top notch. It's the easiest and best for the affiliate and hopefully for the companies when they sign up.