So what psu i need for a gtx 770 msi twin frozr oc and i5 3350p also will all psu's fit it the case? https://www.google.bg/search?q=acer+predator+g3620&source=lnms&tbm=isch&sa=X&ei=ubp_U5CzLI744QSB-ICIDA&ved=0CAYQ_AUoAQ&biw=1440&bih=799#facrc=_&imgdii=_&imgrc=fSN5N-mYl2h75M%253A%3Bsl1NPX0xG1yYDM%3Bhttp%253A%252F%252Fcore2.staticworld.net%252Fimages%252Farticle%252F2013%252F05%252F1252854_sr_1160-100037468-large.jpg%3Bhttp%253A%252F%252Fwww.pcworld.com%252Fproduct%252F1252854%252Fpredator-ag3620.html%3B580%3B388