Isn't it dangerous to let all this running with no casing? I would be afraid of getting shock or burnt by it.
Nah dude, it's a good way to test all the components while building the system. Also if you're running a mad set-up in a case way to small for it all (eg: my home setup) it's a good way to let things vent, while testing overclocks.
Cheers
jimmy
P.S: GotMyOrangeCrus get a Fire Hazard Sticker