Second Onus on the location. If you have the kitchen table/counter or anywhere else with plenty of space to lay things out without screws being able to roll away, the better. Good lighting and space to move and rotate your case is essential.
When installing the OS for you system, try to keep the build minimal at first. Leave secondary/extra storage devices, USB headers in the case, and everything that isn't essential out, this process of installing on the minimum and adding parts in after the OS is installed will insure you have the most stable platform from the ground up, rather than putting everything in and trying to diagnose potential (although hopefully non-existent) problems after the fact.