I am looking for a simple GUI based way to format drives to NTFS (Windows) on Mac OS X Snow Leopard.
OS X can default read NTFS disks, but not write to them.
NTFS for Mac OS X (10 Days Trial): I use this one, and it does the job very well. When the driver is installed, you format your NTFS disks with
Disk Utility where you select
Windows NT Filesystem as the format.
Tuxera NTFS for Mac (15 Days Trial): I haven't tried this one, but it should also do the job.
You'll need to have
ntfs-3g driver and
FUSE for macOS which extends the file handling capabilities of the OS. Both these things are open source.
I am not explaining the downloading and installation instructions here because the link below has explained each and everything on how to make NTFS drive work with macOS. This worked successfully on my macOS Sierra.
You can now use Fuse. It's very useful and easy to be installed. Moreover, it's free.