Well, NITE is a major market maker for ST so I am thinking they have a lot to do with the halt. Could be shorty is covering?? Not sure. I have ameritrade and they charge me the same as Scottstrade anyway. Plus, they use a e-signals type of software that tries to match your trade with the best market maker order out there no matter who that market maker is.
Been thinking about getting Zecco. I hear they will trade pennies with no hassle.