I wrote a review of The Staking Machine on the forum way back in 2007: The Staking Machine Review
The main points of that review still stand today, but with the release of version 4 in mid-2012 a few extra bells and whistles have been added to make this excellent piece of betting software even more powerful.
It now has 41 staking plans included:
23 Back Staking
16 Lay Staking Plans
2 Each Way Staking Plans
Data analysis has been improved with clear graphs so you can analyse all aspects of the results. In fact the features are so numerous it’s best if you visit the site, read all the information and install the trial software.
After all these years I still use this software and HIGHLY RECOMMEND it to anyone who takes betting seriously.