NTFS-3G for Mac OS X!
This package will install read/write file system support for the Windows NT Filesystem (NTFS) using the free software project NTFS-3G.
Please visit http://macntfs-3g.blogspot.com for the latest version of this package.
The package contains the following software components:
NTFS-3G for Mac OS X is a software project designed to bring NTFS read/write support to Mac OS X along with additional advanced features.
It is based on NTFS-3G, the leading open source NTFS driver that is ported into numerous platforms, but also includes other software projects to build a complete toolset for managing NTFS volumes.
NTFS-3G itself is included in hundreds of Linux distributions; for example Fedora, Mandriva, openSUSE and Ubuntu use NTFS-3G as the default NTFS driver. Development has been ongoing since 2006.
http://www.macupdate.com/app/mac/24481/ntfs-3g