I'm trying to figure out if there's a way that after completing checkout, a user can be promoted to a new level that I've set to allow access to other products + other content on the site. Is this easily doable with the workflow module?
The idea now is that a user can register on the site at the basic level, and I'm using protected nodes to allow only access to this one CD seminar. Once the seminar is purchased, they're allowed full membership into the site.
Suggestions? Thanks for your help in advance 

