I am currently using WHM Autopilot on my site. It does everything I want it to and I haven't had any problems with it. However, I am thinking of getting a plesk server and WHM Autopilot only supports WHM/CPanel... So I am going to have to switch...
What software would you reccommend I use, apart from Modernbill?
Just something that will take payments, and auto-setup the account on the user selected control panel.
WHM AutoPilot does this, but just for CPanel.
ModernBill does it for a few control panels, but there are reasons I do not want to use that