Skews
If your looking to "take it on" then you need good option software pricing which costs money. you can try SuperDerivatives on line pricer, get a free trial and see what you think otherwise you will be stuck with the free stuff (black and scholes) which obviously is no good.
Regards, Rob
Oanda? no way. Go SaxoBank, Min 10KUSD easily funded, no comms, tight spread and the best charting package and news and analysis comes with it.
Good luck
WH