If you have Parallels 8 & W7 installed you can still write files/folders on the mac to the NTFS NAS, so need not install Paragon or Tuxera at all.
For DAS that's NTFS formatted, you'd need a Paragon or Tuxera offering.
http://www.makeuseof.com/tag/paragon-ntfs-mac-os-review-rewards/
For NAS, the file system doesn't matter as it's offered up to OS X as either CIFS, AFP or NFS.
If the NTFS volume is made available via NAS over AFP then Time Machine will create a disk image file containing an independent JHFSX filesystem, onto which your backup will exist. Time Machine will not backup to NTFS formatted DAS. To support Time Machine to a 3rd party NAS, you need to make sure the version of AFP it's using is up to date (netatalk 2.2.3 or better).
Appreciate your response...I was hoping you were correct as this may have solved one of my problems but unfortunately you are not...
I ran a test as follows....with Paralells closed
1. I disabled the Paragon NTFS for Windows driver and noticed that the permissions that I had for a NTFS formatted USB drive were *READ ONLY*.
2. I enabled the Paragon NTFS for Windows and noticed that that the permissions that I had for the same NTFS formatted USD drive were *READ AND WRITE*.
I can only concluded -- based on the above -- that Parallels possibly [because I have not tested this and this should be tested] allows one to both read / write to NTFS formatted drives that are accessed "through it" but not otherwise...I do not -- for resource purposes -- always want Parallels to be running...
I hope that this is helpful,
Joel
7. VPN
I will need to connect to a Cisco SA...I was able to do so with iOS 6's built in VPN app which was Cisco clients...is there a similar app in OS 10.8?
Joel
If you are using IPSec, you do not need the Cisco VPN client. An IPSec VPN client is built in.
I use it to connect to multiple Cisco ASA's via IPSec. It works well.
Ain't too sure about your requirements, but I have no problem copying files on the Mac to the NAS which was forbidden under OSX. My requirement is typically an ad-hoc basis, but it appears you wanted your iTunes to have full read/write access to the NTFS NAS, hence from a resource point of view, it's kinda overkill to fire up // and W7 just to enable full RW access.