well writing to an NTFS drive is kind of a no no ...
there is developmental support in the 2.6.x kernel now
that if you really want to, you can test ... or you can try
Captive .. but since
i don't use windows nor an NTFS partition, i can't tell you
how Captive works, nor if it does correctly ...
as of DC, my favorite linux client is
DCGUI-QT
and
here is a link for bittorrent ...
oh, and
here is info on mounting your NTFS partition ...
so i personally think you should just download your stuff to your main drive ...
as of sharing, once you mount the partition, it will not be a problem to share stuff on
that drive, since people that connect to you to download stuff will not be writing
to the partition ...