If you liked black books get all three of Bill Bailey's standup DVDs.
The IT crowd is a new series which is not brilliant but i'd say its worth a watch, you can download all the episodes free from
http://synitex.com/~itcrowd/ . It starts off slow but the later episodes are better than the first two. They should work but have some kind of gay DRM.
Monkey dust is really great but I advise pirating an episode or two from the first series before forking out on the DVD.