Steve,
Any links on how to do that?
Nope, they are all dead now. Basically, get a couple of relays, one for the headlight power, another for switching between high and low. Just use the old wiring for the triggers, bring power in from an axillary panel. This way, if for some reason your new wiring futzes up on you, you still have the stock stuff to make the headlight work.
Or just get the nice neat one from Murphs'. It also has provision for driving lights.
Note: If you plan on going HID, most of those already have a bypass built into their harness. Almost plug n play.