Chances of acceptance

Hi Guys. I have a question here and need some advice on this. I am a qualified Chartered Accountant from South Africa (C.A. SA), and have CFA Level 1 as well as CAIA . I was an Equity Sales Trader at BNP Paribas and am now in Private Equity as an Investment Analyst. I would love to work in the USA at a hedge fund (Equity Long Short). My varsity marks were good till 2nd year, and am worried that will impact my application. Firstly, I want to do a Masters in Finance in the US or UK, and would like a list of those schools were GPA counts less, and 2nd i want to know if I stand a good chance of getting in anywhere, especially the good schools such as LSB, Imperial, Warwick, NYU Stern etc. My GMAT score is 720 and my GPA is 3.0.