[R-SIG-Finance] Data Sources

[Noah Silverman]

  Hi,

I'm taking a graduate level course on derivatives and options.  As we're 
learning more about the subject, I'd love to start modeling some things 
in R and trying out some ideas.

Are there any reliable (and hopefully affordable on a student's budget) 
data feeds for financial data - mainly options in the US markets?  I've 
seen Interactive Brokers, and it looks great, but they have a $10K 
minimum in order to open an account.

Thanks!

-N