OPTIONS FOR EXTENSION OF OPT BEYOND 90 DAY DEADLINE

I have graduated with a Masters in Electrical engineering and my 90 day deadline for OPT ends On October 1st 2014

Can I take up an IT short term course to extend my stay? Once my course work is over, according to USCIS rules must I find a job in IT itself or can I work as an Electrical engineer ? If I get an IT job, will it affect my future H1B processing because of my Masters in Electrical engineering?
Any suggestions would be greatly appreciated.

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