http://www.hothardware.com/printarticle.aspx?articleid=1178 OCZ NIA Brain-Computer Interface Designed for gamers but perhaps this would have some use for scalpers. I found this quote interesting: "The difference in reaction time between a finger twitch and a twitch of an eyebrow is great enough that unless you are already a very high level twitch-FPS player, you will probably see an immediate improvement in reaction time using the NIA over a mouse for the trigger. " Sounds like it takes a lot of practice/training to become really proficient with it though.
Nice, I like it. But I need lots of hot keys to trade. I know you guys may laugh, but I spend about an hour a day playing fast paced counter-strike games (FPS) to keep my reaction times high. At least that's how I rationalize playing video games everyday at my age.... But seriously, it keeps me very fast. And once StarCraft2 comes out, I'll be trading at ninja like speeds.
The only specs I found says it doesn't yet support 64bit OS. Unfortunately, that will keep me from buying