You haven’t had to build a pc on your own then have you? For some one who’s never built one it can be extremely confusing oh the system requirements yeah well the system requirements are confusing as it is, so you will have to forgive me if I ask you to take your trolling to some other part of the forums and if you wouldn’t mind take your flame pet Sulda with you.
I never look down on people asking others for opinions/advice, it can be confusing. that being said, if you are unsure of what you are doing then let someone else build your rig, or get a friend who knows how to at least supervise you as you do it. or, if the friend is willing let them put everything together while you watch and have him tell you what he is doing, so you can learn for another time.
and yeah make sure your PSU is big enough, i would get the basic needs of all your pieces and then add 200 watts or if you don't want to do the math at least look at the recommended size for the video card and add 200 watts (each part in a PC has a recommended wattage to "set aside" for it when considering a PSU size to be proper you would add all these up for a PSU then add in the extra overage for expansion and safety margin)