The best solution is buy a WD my cloud worth 200$. But think of it as a one time investment!
and it is your personal storage that can be accessed at full Harddisk speed when you are at home! What about that !
If you even used it for 20 months or 24 months your WD will be providing cloud service of upto 2-3TB free of cost.!
And for torrent capabilities check this out-http://wdc.custhelp.com/app/answers/detail/a_id/11046/