You can also get the chroma deathadder a because if you have a favourite colour or your system is a certain colour then the mouse will match with basically anything system colour.
It is not complicated at all. Its quite easy actually. I would recommend once you get the case you look at the manual or check on the Internet. Watch some How-To videos on PCs it will help you and teach you something you might have never done.
Yeah this PSU does work for this build but one extra thing to mention is that you have to remove drive bays for the gpu because the card 305mm in length while the case supports 300mm.