Franconi's course is excellent...it also has most of the chapters (or at least the good ones) from 'The DL Handbook' which is a really good resource. Of course, it costs £80, so downloading a bunch of PDFs looks good....
Interesting article...I'd heard a bit about Sesame, but will go and have a look.
Agree about Kowari, both that it's good, and a REAL PITA to get running (all the docs are out of date wrt packages, so even running the examples breaks....).
Also agree about Pellet, which is great. AFAIK, FACT++ is only OWL-Lite, whereas Pellet is OWL-DL plus cardinality. Others (like RACER) lose out due to the closed source/ 'license your kidneys to use the software' approach.