|FUSE for OS X|
OSXFuse is based on MacFUSE and is an interface to the NTFS-3G driver that allows you to read and write NTFS disks in the latest operating systems from Apple. Once you run it can perfectly set up your Mac to be able to work with such drives.
This is a utility that comes from Linux, open source and therefore free. Installation is very simple and even lets you make appropriate settings on your computer with ease. The utility is located in the ins pane of operating system preferences and recognize the NTFS disk as soon as you connect to the computer.