Cybercash = Fun
Although... their system is well documented, so I should stop complaining.
I'm just not looking forward to learning the in's and out's of a bunch of different processing gateways. I already have authorize.net integrated, and am trying to decide which I should do next.
CyberCash seems to be one of the most popular around. That looks like the one I'll go for.
Payflow Pro is another one that's getting a lot of praise. However, I'm not very familiar with the system. Before I decide whether or not to include support for this, I'll have to learn about it as well.
Well, the bright side is that I will definitely be an expert on processing gateways by the time I'm finished here.