What online broker do you use for day trading?

I’ve done some minimal day trading in the past and am looking to get more serious with it. I know you need a minimum $25,000.00 balance and all….I’m just curious to hear from other day traders which broker they use and if they are happy with the service. Thank you.

I have used Scottrade for several years with very good service. Buy/sell execution speed is very fast (usually within 1-3 seconds) and they also have local offices with real people to help you.

Still $7 per trade.