[Aussie Mike]

A lot of your modern injections systems let the ECU control the pump. If the ECU detects the engine hasn't fired in 5 seconds they shut the pump off. If the engine stalls it also shuts the pump off. That's how I've got mine set up but it's an LS1, the Ford ECU might work a little differently.

I've got a battery switch made by Flaming River. It's very solid and has a good feel to it. Bernie reckons it looks like a B&D garage door handle but I don't care. Some thieving bugger can't steal the plastic key with this setup. My switch just isolates the battery, I let the ECU take care of the rest.

Flaming river also do one that has double contacts so you can use it to disconnect the alternator output or if your wquipped with a magneto to shut it down. Expensive though at probably well over $100 by the time you get it in from the US.

Cheers