Anybody use online or otherwise low-cost stock trading? Any issues with it? Happy with a particular brokerage? Advanatages or disadvantages to look for? (Why do I ask? I've been using a standard brokerage for years, with negotiated lower rates on stock trades. And, though a tad expensive, it was not a big deal as I was long-term investing... and the broker provided plenty of services for that. Now I am considering doing some very active short-term investing... and the traditional brokerage costs start to look daunting in that situation. So, I am looking at alternatives.) Thanks.