Hey bro, I so love your plugin... This has solved half of my issues so far. But the other half is another headache that I'm going insane on. Your plugin has everything that I need in terms of customizable member sign-up fields, but I need for those members to be able to make (variable) payments, specifically through a payment gateway (i.e. paypal). Is there a way to integrate your plugin with a (or any) payment gateway solution or plugin?