There is no guide out there that will tell you everything you need to do. If you are a starter, I recommend you to read the 10.7 hardware compatibility section in the OSx86 wiki first to see if most of your hardware is supported (No QE/CI support is garbage). Then read a generic guide about how to install 10.7 on your PC. I recommend downloading and using a distro as a start. However, when you become more experienced and confident, get a retail version of the DVD and patch it yourself.

OSx86 wiki
Generic installation guide