The title says it all, a decent selection of Half Man Half Biscuit albums are available on iTMS.
Back in the DHSS is a work of genius, who else could come up with couplets the likes of:
Dracula comes from Transylvania
Stevie Nicks talks about kleptomania
Time flies by when you're the driver of a train
Speeding out of Trumpton with a cargo of cocaine
James Dean was just a careless driver
and Marilyn Monroe was just a slag