I can’t afford free software

After reading about it in the Oct/Nov 2010 issue of MAA Focus, I really would like to use WeBWorK for student exercises and homeworks.  BUT!  It’s a standalone course management system that would only interface with Blackboard via CSV files, it has a  limited question bank for probability and statistics, and it begs for experienced UNIX sysadmins for its daily care and feeding.  Dang! if only it were a mere plug-in….