I think there has been a thread on this before but.....
I'm with Taly.
I prefer, on the odd occaisions when I do write, to write on notebooks/pads. This is mainly because I hate typing and because most of my writing is done outside: in the trees, by the river, along the canal in the meadow etc. I just find this gets my creative juices flowing nicely and that a computer is generally the most sterile thing you'll find outside of a eunuch.