Before going live

I got over the alerts on the installer, but I think that there are issues that I should fix.
This installation is owned by root, and root is member of group root only.
So I think that I should change ownership to a celebrity like ckosloff, and make him a member of group apache or html, whatever it is called, then log in as that user.
Also setting chmod to 755 in directories was rejected by the installer, so got past this step I chmoded 777, which is a security hazard, so I will try chmoding to 775.
Doing these changes will enable apache to write to folders and files, via group member ckosloff.
On another note I will also have to add user to database.
I will add ckosloff via adminer, which I solved (see thread), only with privileges on said database.
So I am ready to install but I think that these changes should be made before.
Your thoughts, please.