Next, download MacFuse from Tuxera. Version 2.2 is 64-bit compatible and can be found here. If you haven't installed NTFS-3G, download this. The Oct. 11, 2010 version is the most current, working binary. Again, double click the install NTFS-3G package and follow the instructions. When prompted to choose No caching or UBLIO caching, I recommend UBLIO. The performance boost is worth the very minor risk. And if you're paranoid, just make sure to copy your files to the external drive, not move them.