Rather than rearranging everything to be like Windows, maybe you should learn to use things the way they are on Mac.
Just consider that every hack and customization you make will make it that much harder to use another Mac without all your Windows-y adjustments.
For example, on Mac you navigate around text with the Command and arrow keys. So:
Win Mac
Beginning of line Home ⌘←
End of line End ⌘→
Beginning of doc Ctrl-Home ⌘↑
End of doc Ctrl-End ⌘↓