Yazsoft today announced the availability of Speed Download 4.1.4, an important update to the the fourth generation of Yazsoft’s award winning download manager for Mac OS X. Version 4.1.4 adds some key new features and improvements and is a recommended update for all Speed Download 4 users. As an added bonus, Speed Download now includes a link to Transmission, a Bittorrent application. Transmission is a free, lightweight BitTorrent client featuring a simple, intuitive interface on top of an efficient, cross-platform back-end. Speed Download requires Mac OS X 10.4.6 or later and is priced at US$25.