Double Major in Computer Science?

Uprising freshman to the Red McCombs School of Business as an undergrad...
Should I try to double major in Computer Science or just focus on Finance if I am trying to get into IB and eventually private equity, HF, VC? The reason why I'm coming to this decision is because I heard that getting an engineering or computer science undergrad and getting an MBA later is more potent than just getting an undergrad business degree...
Thanks!