Top Choice
Other Quality Brokers

Think or swim offers the best desktop platform of any broker.  I primarily trade options and once I became a thinkorswim client I never looked back.  If you are a serious options trader you need to be able to analyze both possible strategies and adjustments to current positions.  The thinkdesktop platform offers advanced analysis which is far superior to any browser based brokers. At first it may seem daunting, however once you grow accustom to this powerful platform it will become a valuable tool for options trading.  They also offer low commissions and good customer service.

optionsXpress - Online Options, Stock and Futures Investing

OptionsHouse Brokerage 2.0 - OptionsHouse is an online broker, specializing in low, flat-rate options commissions

tradeMONSTER - Trade stocks, options, ETFs, Mutual Funds and Bonds