I am using Tradeking and so far I have no issues.

interactive brokers

Thank you guys for your comments! One more question if I'm starting with a $1000 is it worth(or possible) to put it into two different brokers so I can have more trades per week?

Yes it's possible to have 2 brokers at the same time. Its actually smart to have many different accounts, with a big account like Tim's. I would say put it all in one that way you could work your way up to $2000. Ounce you reached that goal you can start shorting. That's when the real money starts coming in. Since you are starting get used to one set up and learn how to navigate fast through all the feature, tools, bells, and whistles the broker has to offer. Interactive Brokers charges fra