Installing Windows 7 64-bit On Dell Inspiron 1420 Notebook

My holiday upgrades have started and I upgraded a Dell Inspiron 1420 today, it was a good experience, however there were some very important drivers missing in the out of the box process that were easy enough to fix so I wanted to share the details for those who might not find this so obvious because you have a machine that works GREAT with Windows 7!  First, verify what sound device and video device you have before you start this process it will provide some confidence in the steps here. The Dell Inspiron 1420 Im referring to had a SIGMATEL STAC 92XX C-Major HD Audio processor and a NVidia GeForce 8400GS Graphics processor. Windows 7 doesnt seem to know this hardware is part of the machine and so the drivers are completely missing, instead there is generic audio driver (enables the headphone jacks, but not the built-in speakers) and a generic VGA graphics adapter driver provided (that provides full resolution but no Aero support).