Yahoo's new feature allowing you to connect your brokage account to your "portfolios" will show you all your trading patterns, what it cost you for the number of trades including interest, trades, research your broker offers,and the savings you could realize with other brokers. I now realize I'am paying TD top dollar for being a heavy trader according to them. I didn't think about all the money they make off me in a year. They also give you all kinds of information on your holdings on one screen. News, gains, 52wkH and L, charts, changes in ratings, eps, ect.
I'am going to keep TD for "core holdings" and their reseach, then open a new account with Scottrade for trading. Check it out ! It will show you aside of your trading you may not think about and give you ways to save money and still get the job done.
Why not go with Interactive Brokers? Trade costs are almost negligible.
Scottrade is pretty backwards, IMO. I still have an account with them, but I hate their mobile app and their trading platform. They are still $8 / trade and just as expensive as others on options. Do yourself a favor and check out IB before you open a new account.