Come on.. There are tons of PC building tutorials that will give you excellent guidance into building your Gaming PC from scratch to the end... Here is one of the hundreds of videos :
[video="https://www.youtube.com/watch?v=ae5tiPnett8"][/video]
There is really not much in assembling a gaming PC.. You can do it quite easily by just paying attention... Yes the components are delicate, but this guide will show you all the precautionary measures..