As I see it an MBA in finance can only add to your market value - no matter whether you choose to follow the finance or the IT line or choose to follow a line in between.
Banks, insurance companies, large cap companies and many many other companies needs people with a financial understanding and IT skill, and there is not that many of those.
A large number of top management people say that they first and foremost looks at results and personality and secondly on education. However, the finance and your IT education gives you credentials to pursue job opportunities in both areas. If you do financial project planning in your education you have a good opportunity to apply for jobs within project management within programming or network implementation. There is also the posibility of becomming manager with staff responsibility within network operations - and with time maybe more.
Education is one thing the more important is how you conduct yourself in your business life and how you administer your career choices. It might be worth reading a couple of books on the subject.
I think you should seriously think about your future career and decide what you wish to do in the future. I normally suggest that people set goals for what they wish to accomplish in their working lives, and then set a 5 year plan ahead. This plan then constantly needs to be updated because you change over time. The only thing you can be certain of when you make a choice, is that you will experience things and by experiencing you will change your view.
Final piece of advice....remember career planning is not about planning a life but about planning the time in your life you spend on work. All career planning should be based on your expectations to life....not the opposit.
Good luck