Hey, so I just wrote a bit of an instructional for a client for installing a Space Navigator to Windows. Was pretty simple actually as I hadn't installed it since I formatted my computer, so I just documented what I did, as i did it.
The Space Navigator is a pretty funky bit of kit. In short, its a 6 axis joystick and it lets you move your avatar or your camera around in Second Life or several other 3D programs really easily and intuitively. And its lotsa fun :)
Torley talks about it in one of his vids, let me find the link...
Actually a heap of videos on there about it, handy :)
Below is the instructional bit that I wrote for the client. Just a casual bit of script, nothing major.