Double major Fin/CS vs triple minor in...

Hello all,

Non target student here, doing BS in finance. My aspirations are undecided between trading, asset/investment management, fixed income, and ideally any of those things within a hedge fund. ANYWAY! Merits of a CS double major are obvious. Not terribly concerned with GPA hit (I'm a great student). My concern is that if in effort to get into those fields, I want to go to a good grad program like a STEM Mfin or MFE like Berkeley/UCLA, these guys want you to have linear algebra, stats, the works. Those things aren't as emphasized in CS degree, although they're technically present. So my other thought is to Major in finance, but minor in 1) Computational mathematical Sciences 2) applied computing, 3) statistics. That would give me high level math, programming (including data structure/algo), and stats.
Thing is, I would RATHER get to work right out of undergrad and I worry it wont look as good as a FIN/CS double.
Any thoughtfulness appreciated.