I don't know if anybody here is interested, but I noticed that Humble Bundle have a collection of Sherlock Holmes games as part of their weekly sale .

If you haven't used Humble Bundle before it works like this.   They offer a collection of games, and you choose the price you want (above a minimum to unlock certain games, and a minimum of one dollar if you want Steam keys).   The money is then split between the game developers, Humble Bundle and charity.  You can choose how much you want to go to each, and have the satisfaction of supporting charity and game developers as well as getting cheap (depending on how much you want to spend) games! 

The Sherlock Holmes games on offer at the moment are:
The Hound of the Baskervilles
The Mystery of the Persian Carpet
Sherlock Holmes:Nemesis
The Awakened
The Secret of the Silver Earring
The Mystery of the Mummy

If you pay more than nine dollars, you can also have Sherlock Holmes v Jack the Ripper.   There are also other non-Sherlock games as part of the bundle. The deal runs out in a couple of days, so be quick!

They also do downloadable books, and there is a Sherlock Holmes comic book in the current book deal.