Will be installing some plugins of Sean Donahue in the coming weeks, and since the plugins require ionCube, we'll need to read up on webhosts that do not have ionCube by default.
For example:
http://wiki.dreamhost.com/IonCube_Loader
We'll update this page in the future and note down any challenges we encountered during the installation of the WP Profit Builder plugin.
Here's how to enable ionCube in Hostgator:
http://www.ehow.com/how_8026831_enable-ioncube-hostgator-account.html