nope, you dont need any additional hardware
i have done it several times already... all you need is the software and the IP address
you can move your mouse as on the screen and you can do things on that pc as if it were right in front of you
the problem is transfering of files. dadaan pa rin sa internet kaya medyo mabagal
if you want na mabilis ang pagtransfer, thats the time you should avail the additional hardware (locally, intel is offering vpro for such)