Not sure is this the right place to ask, but does linux support complete rw rights to NTFS formatted partition? This might turn me to linux, since I heard that freebsd is only able to r...

by default most linux stros support r, but there are additional packages you can install to support rw. like the one at linux-ntfs.org.

Yes and no. Yes there are ways to read and write to windows. No, they'll never be 100% reliable because Windows doesn't have an open filesystem. I only use NTFS writing during extreme cases of recovering someones XP install (in which their options are limited to a reinstall anyway). I've had success and failure with it. If it's critical data, I wouldn't do it. If you make backups and can afford to reinstall windows if something borks up, feel free to give it a whirl. But personally, I still use a shared FAT32 partition for files I want in both linux and windows.

Look at
http://www.linux-ntfs.org/
http://www.jankratochvil.net/project/captive/

Thanks for replies. FreeBSD it is then. I feel a tad more comfortable in it's command line.