Snow Leopard (Mac OS X 10.6) has the ability to mount NTFS volumes as read/write, but it's not enabled.
Just read-only is supported, as in version 10.5.
But there is a simple tool to enable full read/write support for NTFS drives in Snow Leopard:
http://ntfsmounter.com/ - Click here to open in new window
I installed it and it seems to work fine, but don't forget you will use it at your own risk ...
