Changing careers – looking for IT training

Hi All,
I have an MBA and a 3 year experience working on Wall Street and 10 years overall in financial industry. Now, with the recent turmoil in financial world, I am looking to change careers and get into IT world. What would be a good place to start? What certificates should I obtain first, should I start with A+, N+? Could anyone please recommend a good training program(s)for IT certifications? Did anyone take New Horizons courses?
I would greatly appreciate any advice. Many tanks to all in advance.
Cheers!