Any good Economics Text book will do: like Principles of Economics/ Principles of Microeconomics, Gregory Mankiw

You can also try, although, personally I have not taken these:

https://www.coursera.org/course/microecon

https://www.coursera.org/learn/principles-of-macroeconomics

> FT and all the stats that CNBC shows me

For Investment valuation and Corporate Finance Damodaran is one of the best sources:

http://people.stern.nyu.edu/adamodar/

Visit his blog, read his books. He has online classes as well

Also you can try, (I've not taken this course): https://www.coursera.org/learn/financial-markets

For Value Investing, Benjamin Graham is a classic:

http://www.amazon.com/Intelligent-Investor-Definitive-Invest...

> For Technical Analysis and Futures Trading though, there are tonnes of books. May be you can start with these:

http://www.amazon.com/Technical-Analysis-Financial-Markets-C...

http://www.amazon.com/Options-Futures-Other-Derivatives-Edit...

And lastly,

> combine my CS background with Finance and do something interesting in it

https://www.coursera.org/learn/computational-investing