What laptop should I get?

So i am indecisive right now in terms of which brand to pick. I would love a mac book pro but too expensive + im used to windows. So I want a very fast computer, light up keyboard, needs to be compatible with movie making programs like Magix movie pro, large memory bc i have a lot of music.. I am not a big gamer however I use internet often and do my school work on office programs like word and powerpoint. So these are basically the things I want in a computer. I am looking at HP, Dell, and Toshiba. I need feedback on this because there is so much stuff out there and I dont want to get the wrong one. I am will to spend up to 750 but preferally a bit less. Best Buy has some good deals. Thanks!!!